Integrand size = 19, antiderivative size = 248 \[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=-\frac {1-a^2 x^2}{20 a}-x \text {arctanh}(a x)-\frac {1}{10} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2 \left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{5 a}+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}+\frac {8 \text {arctanh}(a x)^3}{15 a}+\frac {8}{15} x \text {arctanh}(a x)^3+\frac {4}{15} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3-\frac {8 \text {arctanh}(a x)^2 \log \left (\frac {2}{1-a x}\right )}{5 a}-\frac {\log \left (1-a^2 x^2\right )}{2 a}-\frac {8 \text {arctanh}(a x) \operatorname {PolyLog}\left (2,1-\frac {2}{1-a x}\right )}{5 a}+\frac {4 \operatorname {PolyLog}\left (3,1-\frac {2}{1-a x}\right )}{5 a} \]
1/20*(a^2*x^2-1)/a-x*arctanh(a*x)-1/10*x*(-a^2*x^2+1)*arctanh(a*x)+2/5*(-a ^2*x^2+1)*arctanh(a*x)^2/a+3/20*(-a^2*x^2+1)^2*arctanh(a*x)^2/a+8/15*arcta nh(a*x)^3/a+8/15*x*arctanh(a*x)^3+4/15*x*(-a^2*x^2+1)*arctanh(a*x)^3+1/5*x *(-a^2*x^2+1)^2*arctanh(a*x)^3-8/5*arctanh(a*x)^2*ln(2/(-a*x+1))/a-1/2*ln( -a^2*x^2+1)/a-8/5*arctanh(a*x)*polylog(2,1-2/(-a*x+1))/a+4/5*polylog(3,1-2 /(-a*x+1))/a
Time = 0.43 (sec) , antiderivative size = 183, normalized size of antiderivative = 0.74 \[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=\frac {-3+3 a^2 x^2-66 a x \text {arctanh}(a x)+6 a^3 x^3 \text {arctanh}(a x)+33 \text {arctanh}(a x)^2-42 a^2 x^2 \text {arctanh}(a x)^2+9 a^4 x^4 \text {arctanh}(a x)^2-32 \text {arctanh}(a x)^3+60 a x \text {arctanh}(a x)^3-40 a^3 x^3 \text {arctanh}(a x)^3+12 a^5 x^5 \text {arctanh}(a x)^3-96 \text {arctanh}(a x)^2 \log \left (1+e^{-2 \text {arctanh}(a x)}\right )-30 \log \left (1-a^2 x^2\right )+96 \text {arctanh}(a x) \operatorname {PolyLog}\left (2,-e^{-2 \text {arctanh}(a x)}\right )+48 \operatorname {PolyLog}\left (3,-e^{-2 \text {arctanh}(a x)}\right )}{60 a} \]
(-3 + 3*a^2*x^2 - 66*a*x*ArcTanh[a*x] + 6*a^3*x^3*ArcTanh[a*x] + 33*ArcTan h[a*x]^2 - 42*a^2*x^2*ArcTanh[a*x]^2 + 9*a^4*x^4*ArcTanh[a*x]^2 - 32*ArcTa nh[a*x]^3 + 60*a*x*ArcTanh[a*x]^3 - 40*a^3*x^3*ArcTanh[a*x]^3 + 12*a^5*x^5 *ArcTanh[a*x]^3 - 96*ArcTanh[a*x]^2*Log[1 + E^(-2*ArcTanh[a*x])] - 30*Log[ 1 - a^2*x^2] + 96*ArcTanh[a*x]*PolyLog[2, -E^(-2*ArcTanh[a*x])] + 48*PolyL og[3, -E^(-2*ArcTanh[a*x])])/(60*a)
Time = 1.54 (sec) , antiderivative size = 298, normalized size of antiderivative = 1.20, number of steps used = 11, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.579, Rules used = {6506, 6504, 6436, 240, 6506, 6436, 240, 6546, 6470, 6620, 7164}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx\) |
\(\Big \downarrow \) 6506 |
\(\displaystyle -\frac {3}{10} \int \left (1-a^2 x^2\right ) \text {arctanh}(a x)dx+\frac {4}{5} \int \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3dx+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}\) |
\(\Big \downarrow \) 6504 |
\(\displaystyle -\frac {3}{10} \left (\frac {2}{3} \int \text {arctanh}(a x)dx+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {1-a^2 x^2}{6 a}\right )+\frac {4}{5} \int \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3dx+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}\) |
\(\Big \downarrow \) 6436 |
\(\displaystyle -\frac {3}{10} \left (\frac {2}{3} \left (x \text {arctanh}(a x)-a \int \frac {x}{1-a^2 x^2}dx\right )+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {1-a^2 x^2}{6 a}\right )+\frac {4}{5} \int \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3dx+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}\) |
\(\Big \downarrow \) 240 |
\(\displaystyle \frac {4}{5} \int \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3dx+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 6506 |
\(\displaystyle \frac {4}{5} \left (-\int \text {arctanh}(a x)dx+\frac {2}{3} \int \text {arctanh}(a x)^3dx+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 6436 |
\(\displaystyle \frac {4}{5} \left (\frac {2}{3} \left (x \text {arctanh}(a x)^3-3 a \int \frac {x \text {arctanh}(a x)^2}{1-a^2 x^2}dx\right )+a \int \frac {x}{1-a^2 x^2}dx+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}-x \text {arctanh}(a x)\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 240 |
\(\displaystyle \frac {4}{5} \left (\frac {2}{3} \left (x \text {arctanh}(a x)^3-3 a \int \frac {x \text {arctanh}(a x)^2}{1-a^2 x^2}dx\right )+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}-\frac {\log \left (1-a^2 x^2\right )}{2 a}-x \text {arctanh}(a x)\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 6546 |
\(\displaystyle \frac {4}{5} \left (\frac {2}{3} \left (x \text {arctanh}(a x)^3-3 a \left (\frac {\int \frac {\text {arctanh}(a x)^2}{1-a x}dx}{a}-\frac {\text {arctanh}(a x)^3}{3 a^2}\right )\right )+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}-\frac {\log \left (1-a^2 x^2\right )}{2 a}-x \text {arctanh}(a x)\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 6470 |
\(\displaystyle \frac {4}{5} \left (\frac {2}{3} \left (x \text {arctanh}(a x)^3-3 a \left (\frac {\frac {\text {arctanh}(a x)^2 \log \left (\frac {2}{1-a x}\right )}{a}-2 \int \frac {\text {arctanh}(a x) \log \left (\frac {2}{1-a x}\right )}{1-a^2 x^2}dx}{a}-\frac {\text {arctanh}(a x)^3}{3 a^2}\right )\right )+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}-\frac {\log \left (1-a^2 x^2\right )}{2 a}-x \text {arctanh}(a x)\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 6620 |
\(\displaystyle \frac {4}{5} \left (\frac {2}{3} \left (x \text {arctanh}(a x)^3-3 a \left (\frac {\frac {\text {arctanh}(a x)^2 \log \left (\frac {2}{1-a x}\right )}{a}-2 \left (\frac {1}{2} \int \frac {\operatorname {PolyLog}\left (2,1-\frac {2}{1-a x}\right )}{1-a^2 x^2}dx-\frac {\text {arctanh}(a x) \operatorname {PolyLog}\left (2,1-\frac {2}{1-a x}\right )}{2 a}\right )}{a}-\frac {\text {arctanh}(a x)^3}{3 a^2}\right )\right )+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}-\frac {\log \left (1-a^2 x^2\right )}{2 a}-x \text {arctanh}(a x)\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
\(\Big \downarrow \) 7164 |
\(\displaystyle \frac {4}{5} \left (\frac {2}{3} \left (x \text {arctanh}(a x)^3-3 a \left (\frac {\frac {\text {arctanh}(a x)^2 \log \left (\frac {2}{1-a x}\right )}{a}-2 \left (\frac {\operatorname {PolyLog}\left (3,1-\frac {2}{1-a x}\right )}{4 a}-\frac {\text {arctanh}(a x) \operatorname {PolyLog}\left (2,1-\frac {2}{1-a x}\right )}{2 a}\right )}{a}-\frac {\text {arctanh}(a x)^3}{3 a^2}\right )\right )+\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)^3+\frac {\left (1-a^2 x^2\right ) \text {arctanh}(a x)^2}{2 a}-\frac {\log \left (1-a^2 x^2\right )}{2 a}-x \text {arctanh}(a x)\right )+\frac {1}{5} x \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3+\frac {3 \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^2}{20 a}-\frac {3}{10} \left (\frac {1}{3} x \left (1-a^2 x^2\right ) \text {arctanh}(a x)+\frac {2}{3} \left (\frac {\log \left (1-a^2 x^2\right )}{2 a}+x \text {arctanh}(a x)\right )+\frac {1-a^2 x^2}{6 a}\right )\) |
(3*(1 - a^2*x^2)^2*ArcTanh[a*x]^2)/(20*a) + (x*(1 - a^2*x^2)^2*ArcTanh[a*x ]^3)/5 - (3*((1 - a^2*x^2)/(6*a) + (x*(1 - a^2*x^2)*ArcTanh[a*x])/3 + (2*( x*ArcTanh[a*x] + Log[1 - a^2*x^2]/(2*a)))/3))/10 + (4*(-(x*ArcTanh[a*x]) + ((1 - a^2*x^2)*ArcTanh[a*x]^2)/(2*a) + (x*(1 - a^2*x^2)*ArcTanh[a*x]^3)/3 - Log[1 - a^2*x^2]/(2*a) + (2*(x*ArcTanh[a*x]^3 - 3*a*(-1/3*ArcTanh[a*x]^ 3/a^2 + ((ArcTanh[a*x]^2*Log[2/(1 - a*x)])/a - 2*(-1/2*(ArcTanh[a*x]*PolyL og[2, 1 - 2/(1 - a*x)])/a + PolyLog[3, 1 - 2/(1 - a*x)]/(4*a)))/a)))/3))/5
3.3.17.3.1 Defintions of rubi rules used
Int[(x_)/((a_) + (b_.)*(x_)^2), x_Symbol] :> Simp[Log[RemoveContent[a + b*x ^2, x]]/(2*b), x] /; FreeQ[{a, b}, x]
Int[((a_.) + ArcTanh[(c_.)*(x_)^(n_.)]*(b_.))^(p_.), x_Symbol] :> Simp[x*(a + b*ArcTanh[c*x^n])^p, x] - Simp[b*c*n*p Int[x^n*((a + b*ArcTanh[c*x^n]) ^(p - 1)/(1 - c^2*x^(2*n))), x], x] /; FreeQ[{a, b, c, n}, x] && IGtQ[p, 0] && (EqQ[n, 1] || EqQ[p, 1])
Int[((a_.) + ArcTanh[(c_.)*(x_)]*(b_.))^(p_.)/((d_) + (e_.)*(x_)), x_Symbol ] :> Simp[(-(a + b*ArcTanh[c*x])^p)*(Log[2/(1 + e*(x/d))]/e), x] + Simp[b*c *(p/e) Int[(a + b*ArcTanh[c*x])^(p - 1)*(Log[2/(1 + e*(x/d))]/(1 - c^2*x^ 2)), x], x] /; FreeQ[{a, b, c, d, e}, x] && IGtQ[p, 0] && EqQ[c^2*d^2 - e^2 , 0]
Int[((a_.) + ArcTanh[(c_.)*(x_)]*(b_.))*((d_) + (e_.)*(x_)^2)^(q_.), x_Symb ol] :> Simp[b*((d + e*x^2)^q/(2*c*q*(2*q + 1))), x] + (Simp[x*(d + e*x^2)^q *((a + b*ArcTanh[c*x])/(2*q + 1)), x] + Simp[2*d*(q/(2*q + 1)) Int[(d + e *x^2)^(q - 1)*(a + b*ArcTanh[c*x]), x], x]) /; FreeQ[{a, b, c, d, e}, x] && EqQ[c^2*d + e, 0] && GtQ[q, 0]
Int[((a_.) + ArcTanh[(c_.)*(x_)]*(b_.))^(p_)*((d_) + (e_.)*(x_)^2)^(q_.), x _Symbol] :> Simp[b*p*(d + e*x^2)^q*((a + b*ArcTanh[c*x])^(p - 1)/(2*c*q*(2* q + 1))), x] + (Simp[x*(d + e*x^2)^q*((a + b*ArcTanh[c*x])^p/(2*q + 1)), x] + Simp[2*d*(q/(2*q + 1)) Int[(d + e*x^2)^(q - 1)*(a + b*ArcTanh[c*x])^p, x], x] - Simp[b^2*d*p*((p - 1)/(2*q*(2*q + 1))) Int[(d + e*x^2)^(q - 1)* (a + b*ArcTanh[c*x])^(p - 2), x], x]) /; FreeQ[{a, b, c, d, e}, x] && EqQ[c ^2*d + e, 0] && GtQ[q, 0] && GtQ[p, 1]
Int[(((a_.) + ArcTanh[(c_.)*(x_)]*(b_.))^(p_.)*(x_))/((d_) + (e_.)*(x_)^2), x_Symbol] :> Simp[(a + b*ArcTanh[c*x])^(p + 1)/(b*e*(p + 1)), x] + Simp[1/ (c*d) Int[(a + b*ArcTanh[c*x])^p/(1 - c*x), x], x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[c^2*d + e, 0] && IGtQ[p, 0]
Int[(Log[u_]*((a_.) + ArcTanh[(c_.)*(x_)]*(b_.))^(p_.))/((d_) + (e_.)*(x_)^ 2), x_Symbol] :> Simp[(-(a + b*ArcTanh[c*x])^p)*(PolyLog[2, 1 - u]/(2*c*d)) , x] + Simp[b*(p/2) Int[(a + b*ArcTanh[c*x])^(p - 1)*(PolyLog[2, 1 - u]/( d + e*x^2)), x], x] /; FreeQ[{a, b, c, d, e}, x] && IGtQ[p, 0] && EqQ[c^2*d + e, 0] && EqQ[(1 - u)^2 - (1 - 2/(1 - c*x))^2, 0]
Int[(u_)*PolyLog[n_, v_], x_Symbol] :> With[{w = DerivativeDivides[v, u*v, x]}, Simp[w*PolyLog[n + 1, v], x] /; !FalseQ[w]] /; FreeQ[n, x]
Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 3.66 (sec) , antiderivative size = 828, normalized size of antiderivative = 3.34
method | result | size |
derivativedivides | \(\text {Expression too large to display}\) | \(828\) |
default | \(\text {Expression too large to display}\) | \(828\) |
parts | \(\text {Expression too large to display}\) | \(835\) |
1/a*(-4/5*I*Pi*arctanh(a*x)^2-2/3*arctanh(a*x)^3*a^3*x^3+arctanh(a*x)^3*a* x+2/5*I*Pi*arctanh(a*x)^2*csgn(I/(1-(a*x+1)^2/(a^2*x^2-1)))*csgn(I*(a*x+1) ^2/(a^2*x^2-1)/(1-(a*x+1)^2/(a^2*x^2-1)))*csgn(I*(a*x+1)^2/(a^2*x^2-1))+1/ 20*a^2*x^2+8/15*arctanh(a*x)^3+11/20*arctanh(a*x)^2-arctanh(a*x)-4/5*I*Pi* arctanh(a*x)^2*csgn(I/(1-(a*x+1)^2/(a^2*x^2-1)))^3+4/5*I*Pi*arctanh(a*x)^2 *csgn(I/(1-(a*x+1)^2/(a^2*x^2-1)))^2-2/5*I*Pi*arctanh(a*x)^2*csgn(I*(a*x+1 )^2/(a^2*x^2-1))^3-2/5*I*Pi*arctanh(a*x)^2*csgn(I*(a*x+1)^2/(a^2*x^2-1)/(1 -(a*x+1)^2/(a^2*x^2-1)))^3-11/10*a*x*arctanh(a*x)+1/10*a^3*x^3*arctanh(a*x )+3/20*a^4*x^4*arctanh(a*x)^2-7/10*a^2*x^2*arctanh(a*x)^2-1/20-8/5*arctanh (a*x)^2*ln(2)-2/5*I*Pi*arctanh(a*x)^2*csgn(I*(a*x+1)^2/(a^2*x^2-1))*csgn(I *(a*x+1)/(-a^2*x^2+1)^(1/2))^2-4/5*I*Pi*arctanh(a*x)^2*csgn(I*(a*x+1)^2/(a ^2*x^2-1))^2*csgn(I*(a*x+1)/(-a^2*x^2+1)^(1/2))+2/5*I*Pi*arctanh(a*x)^2*cs gn(I*(a*x+1)^2/(a^2*x^2-1)/(1-(a*x+1)^2/(a^2*x^2-1)))^2*csgn(I*(a*x+1)^2/( a^2*x^2-1))-2/5*I*Pi*arctanh(a*x)^2*csgn(I/(1-(a*x+1)^2/(a^2*x^2-1)))*csgn (I*(a*x+1)^2/(a^2*x^2-1)/(1-(a*x+1)^2/(a^2*x^2-1)))^2-8/5*arctanh(a*x)*pol ylog(2,-(a*x+1)^2/(-a^2*x^2+1))+4/5*arctanh(a*x)^2*ln(a*x-1)+4/5*arctanh(a *x)^2*ln(a*x+1)-8/5*arctanh(a*x)^2*ln((a*x+1)/(-a^2*x^2+1)^(1/2))+1/5*arct anh(a*x)^3*a^5*x^5+ln(1+(a*x+1)^2/(-a^2*x^2+1))+4/5*polylog(3,-(a*x+1)^2/( -a^2*x^2+1)))
\[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=\int { {\left (a^{2} x^{2} - 1\right )}^{2} \operatorname {artanh}\left (a x\right )^{3} \,d x } \]
\[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=\int \left (a x - 1\right )^{2} \left (a x + 1\right )^{2} \operatorname {atanh}^{3}{\left (a x \right )}\, dx \]
\[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=\int { {\left (a^{2} x^{2} - 1\right )}^{2} \operatorname {artanh}\left (a x\right )^{3} \,d x } \]
-1/2400*(36*a^5*x^5 - 45*a^4*x^4 - 140*a^3*x^3 + 210*a^2*x^2 + 480*a*x - 6 0*(3*a^5*x^5 - 10*a^3*x^3 + 15*a*x + 8)*log(a*x + 1))*log(-a*x + 1)^2/a - 1/8*(log(-a*x + 1)^3 - 3*log(-a*x + 1)^2 + 6*log(-a*x + 1) - 6)*(a*x - 1)/ a - 1/1440000*(288*(125*log(-a*x + 1)^3 - 75*log(-a*x + 1)^2 + 30*log(-a*x + 1) - 6)*(a*x - 1)^5 + 5625*(32*log(-a*x + 1)^3 - 24*log(-a*x + 1)^2 + 1 2*log(-a*x + 1) - 3)*(a*x - 1)^4 + 40000*(9*log(-a*x + 1)^3 - 9*log(-a*x + 1)^2 + 6*log(-a*x + 1) - 2)*(a*x - 1)^3 + 90000*(4*log(-a*x + 1)^3 - 6*lo g(-a*x + 1)^2 + 6*log(-a*x + 1) - 3)*(a*x - 1)^2 + 180000*(log(-a*x + 1)^3 - 3*log(-a*x + 1)^2 + 6*log(-a*x + 1) - 6)*(a*x - 1))/a + 1/432*(4*(9*log (-a*x + 1)^3 - 9*log(-a*x + 1)^2 + 6*log(-a*x + 1) - 2)*(a*x - 1)^3 + 27*( 4*log(-a*x + 1)^3 - 6*log(-a*x + 1)^2 + 6*log(-a*x + 1) - 3)*(a*x - 1)^2 + 108*(log(-a*x + 1)^3 - 3*log(-a*x + 1)^2 + 6*log(-a*x + 1) - 6)*(a*x - 1) )/a - 1/8*integrate(-1/150*(150*(a^5*x^5 - a^4*x^4 - 2*a^3*x^3 + 2*a^2*x^2 + a*x - 1)*log(a*x + 1)^3 + (36*a^5*x^5 - 45*a^4*x^4 - 140*a^3*x^3 + 210* a^2*x^2 - 450*(a^5*x^5 - a^4*x^4 - 2*a^3*x^3 + 2*a^2*x^2 + a*x - 1)*log(a* x + 1)^2 + 480*a*x - 60*(3*a^5*x^5 - 10*a^3*x^3 + 15*a*x + 8)*log(a*x + 1) )*log(-a*x + 1))/(a*x - 1), x)
\[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=\int { {\left (a^{2} x^{2} - 1\right )}^{2} \operatorname {artanh}\left (a x\right )^{3} \,d x } \]
Timed out. \[ \int \left (1-a^2 x^2\right )^2 \text {arctanh}(a x)^3 \, dx=\int {\mathrm {atanh}\left (a\,x\right )}^3\,{\left (a^2\,x^2-1\right )}^2 \,d x \]