\(\int \frac {\sqrt [3]{a+b x^3}}{x^8 (a d-b d x^3)} \, dx\) [793]

Optimal result

Integrand size = 28, antiderivative size = 210 \[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}-\frac {2 b \sqrt [3]{a+b x^3}}{7 a^2 d x^4}-\frac {8 b^2 \sqrt [3]{a+b x^3}}{7 a^3 d x}-\frac {\sqrt [3]{2} b^{7/3} \arctan \left (\frac {1+\frac {2 \sqrt [3]{2} \sqrt [3]{b} x}{\sqrt [3]{a+b x^3}}}{\sqrt {3}}\right )}{\sqrt {3} a^3 d}+\frac {b^{7/3} \log \left (a d-b d x^3\right )}{3\ 2^{2/3} a^3 d}-\frac {b^{7/3} \log \left (\sqrt [3]{2} \sqrt [3]{b} x-\sqrt [3]{a+b x^3}\right )}{2^{2/3} a^3 d} \] Output:

-1/7*(b*x^3+a)^(1/3)/a/d/x^7-2/7*b*(b*x^3+a)^(1/3)/a^2/d/x^4-8/7*b^2*(b*x^ 
3+a)^(1/3)/a^3/d/x-1/3*2^(1/3)*b^(7/3)*arctan(1/3*(1+2*2^(1/3)*b^(1/3)*x/( 
b*x^3+a)^(1/3))*3^(1/2))*3^(1/2)/a^3/d+1/6*b^(7/3)*ln(-b*d*x^3+a*d)*2^(1/3 
)/a^3/d-1/2*b^(7/3)*ln(2^(1/3)*b^(1/3)*x-(b*x^3+a)^(1/3))*2^(1/3)/a^3/d
 

Mathematica [A] (verified)

Time = 0.47 (sec) , antiderivative size = 206, normalized size of antiderivative = 0.98 \[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=-\frac {\frac {6 \sqrt [3]{a+b x^3} \left (a^2+2 a b x^3+8 b^2 x^6\right )}{x^7}+14 \sqrt [3]{2} \sqrt {3} b^{7/3} \arctan \left (\frac {\sqrt {3} \sqrt [3]{b} x}{\sqrt [3]{b} x+2^{2/3} \sqrt [3]{a+b x^3}}\right )+14 \sqrt [3]{2} b^{7/3} \log \left (-2 \sqrt [3]{b} x+2^{2/3} \sqrt [3]{a+b x^3}\right )-7 \sqrt [3]{2} b^{7/3} \log \left (2 b^{2/3} x^2+2^{2/3} \sqrt [3]{b} x \sqrt [3]{a+b x^3}+\sqrt [3]{2} \left (a+b x^3\right )^{2/3}\right )}{42 a^3 d} \] Input:

Integrate[(a + b*x^3)^(1/3)/(x^8*(a*d - b*d*x^3)),x]
 

Output:

-1/42*((6*(a + b*x^3)^(1/3)*(a^2 + 2*a*b*x^3 + 8*b^2*x^6))/x^7 + 14*2^(1/3 
)*Sqrt[3]*b^(7/3)*ArcTan[(Sqrt[3]*b^(1/3)*x)/(b^(1/3)*x + 2^(2/3)*(a + b*x 
^3)^(1/3))] + 14*2^(1/3)*b^(7/3)*Log[-2*b^(1/3)*x + 2^(2/3)*(a + b*x^3)^(1 
/3)] - 7*2^(1/3)*b^(7/3)*Log[2*b^(2/3)*x^2 + 2^(2/3)*b^(1/3)*x*(a + b*x^3) 
^(1/3) + 2^(1/3)*(a + b*x^3)^(2/3)])/(a^3*d)
 

Rubi [A] (verified)

Time = 0.65 (sec) , antiderivative size = 208, normalized size of antiderivative = 0.99, number of steps used = 7, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {975, 27, 1053, 27, 1053, 27, 992}

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.

\(\displaystyle \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx\)

\(\Big \downarrow \) 975

\(\displaystyle \frac {\int \frac {2 b \left (3 b x^3+4 a\right )}{x^5 \left (a-b x^3\right ) \left (b x^3+a\right )^{2/3}}dx}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {2 b \int \frac {3 b x^3+4 a}{x^5 \left (a-b x^3\right ) \left (b x^3+a\right )^{2/3}}dx}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

\(\Big \downarrow \) 1053

\(\displaystyle \frac {2 b \left (-\frac {\int -\frac {4 a b \left (3 b x^3+4 a\right )}{x^2 \left (a-b x^3\right ) \left (b x^3+a\right )^{2/3}}dx}{4 a^2}-\frac {\sqrt [3]{a+b x^3}}{a x^4}\right )}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {2 b \left (\frac {b \int \frac {3 b x^3+4 a}{x^2 \left (a-b x^3\right ) \left (b x^3+a\right )^{2/3}}dx}{a}-\frac {\sqrt [3]{a+b x^3}}{a x^4}\right )}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

\(\Big \downarrow \) 1053

\(\displaystyle \frac {2 b \left (\frac {b \left (-\frac {\int -\frac {7 a^2 b x}{\left (a-b x^3\right ) \left (b x^3+a\right )^{2/3}}dx}{a^2}-\frac {4 \sqrt [3]{a+b x^3}}{a x}\right )}{a}-\frac {\sqrt [3]{a+b x^3}}{a x^4}\right )}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

\(\Big \downarrow \) 27

\(\displaystyle \frac {2 b \left (\frac {b \left (7 b \int \frac {x}{\left (a-b x^3\right ) \left (b x^3+a\right )^{2/3}}dx-\frac {4 \sqrt [3]{a+b x^3}}{a x}\right )}{a}-\frac {\sqrt [3]{a+b x^3}}{a x^4}\right )}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

\(\Big \downarrow \) 992

\(\displaystyle \frac {2 b \left (\frac {b \left (7 b \left (-\frac {\arctan \left (\frac {\frac {2 \sqrt [3]{2} \sqrt [3]{b} x}{\sqrt [3]{a+b x^3}}+1}{\sqrt {3}}\right )}{2^{2/3} \sqrt {3} a b^{2/3}}+\frac {\log \left (a-b x^3\right )}{6\ 2^{2/3} a b^{2/3}}-\frac {\log \left (\sqrt [3]{2} \sqrt [3]{b} x-\sqrt [3]{a+b x^3}\right )}{2\ 2^{2/3} a b^{2/3}}\right )-\frac {4 \sqrt [3]{a+b x^3}}{a x}\right )}{a}-\frac {\sqrt [3]{a+b x^3}}{a x^4}\right )}{7 a d}-\frac {\sqrt [3]{a+b x^3}}{7 a d x^7}\)

Input:

Int[(a + b*x^3)^(1/3)/(x^8*(a*d - b*d*x^3)),x]
 

Output:

-1/7*(a + b*x^3)^(1/3)/(a*d*x^7) + (2*b*(-((a + b*x^3)^(1/3)/(a*x^4)) + (b 
*((-4*(a + b*x^3)^(1/3))/(a*x) + 7*b*(-(ArcTan[(1 + (2*2^(1/3)*b^(1/3)*x)/ 
(a + b*x^3)^(1/3))/Sqrt[3]]/(2^(2/3)*Sqrt[3]*a*b^(2/3))) + Log[a - b*x^3]/ 
(6*2^(2/3)*a*b^(2/3)) - Log[2^(1/3)*b^(1/3)*x - (a + b*x^3)^(1/3)]/(2*2^(2 
/3)*a*b^(2/3)))))/a))/(7*a*d)
 

Defintions of rubi rules used

rule 27

Int[(a_)*(Fx_), x_Symbol] :> Simp[a   Int[Fx, x], x] /; FreeQ[a, x] &&  !Ma 
tchQ[Fx, (b_)*(Gx_) /; FreeQ[b, x]]
 

rule 975

Int[((e_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_)*((c_) + (d_.)*(x_)^(n_) 
)^(q_), x_Symbol] :> Simp[(e*x)^(m + 1)*(a + b*x^n)^(p + 1)*((c + d*x^n)^q/ 
(a*e*(m + 1))), x] - Simp[1/(a*e^n*(m + 1))   Int[(e*x)^(m + n)*(a + b*x^n) 
^p*(c + d*x^n)^(q - 1)*Simp[c*b*(m + 1) + n*(b*c*(p + 1) + a*d*q) + d*(b*(m 
 + 1) + b*n*(p + q + 1))*x^n, x], x], x] /; FreeQ[{a, b, c, d, e, p}, x] && 
 NeQ[b*c - a*d, 0] && IGtQ[n, 0] && LtQ[0, q, 1] && LtQ[m, -1] && IntBinomi 
alQ[a, b, c, d, e, m, n, p, q, x]
 

rule 992

Int[(x_)/(((a_) + (b_.)*(x_)^3)^(2/3)*((c_) + (d_.)*(x_)^3)), x_Symbol] :> 
With[{q = Rt[(b*c - a*d)/c, 3]}, Simp[-ArcTan[(1 + (2*q*x)/(a + b*x^3)^(1/3 
))/Sqrt[3]]/(Sqrt[3]*c*q^2), x] + (-Simp[Log[q*x - (a + b*x^3)^(1/3)]/(2*c* 
q^2), x] + Simp[Log[c + d*x^3]/(6*c*q^2), x])] /; FreeQ[{a, b, c, d}, x] && 
 NeQ[b*c - a*d, 0]
 

rule 1053

Int[((g_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n_ 
))^(q_.)*((e_) + (f_.)*(x_)^(n_)), x_Symbol] :> Simp[e*(g*x)^(m + 1)*(a + b 
*x^n)^(p + 1)*((c + d*x^n)^(q + 1)/(a*c*g*(m + 1))), x] + Simp[1/(a*c*g^n*( 
m + 1))   Int[(g*x)^(m + n)*(a + b*x^n)^p*(c + d*x^n)^q*Simp[a*f*c*(m + 1) 
- e*(b*c + a*d)*(m + n + 1) - e*n*(b*c*p + a*d*q) - b*e*d*(m + n*(p + q + 2 
) + 1)*x^n, x], x], x] /; FreeQ[{a, b, c, d, e, f, g, p, q}, x] && IGtQ[n, 
0] && LtQ[m, -1]
 

Maple [A] (verified)

Time = 1.77 (sec) , antiderivative size = 160, normalized size of antiderivative = 0.76

method	result	size
pseudoelliptic	\(\frac {\left (-48 b^{2} x^{6}-12 a b \,x^{3}-6 a^{2}\right ) \left (b \,x^{3}+a \right )^{\frac {1}{3}}+7 x^{7} \left (2 \arctan \left (\frac {\sqrt {3}\, \left (2^{\frac {2}{3}} \left (b \,x^{3}+a \right )^{\frac {1}{3}}+b^{\frac {1}{3}} x \right )}{3 b^{\frac {1}{3}} x}\right ) \sqrt {3}+\ln \left (\frac {b^{\frac {2}{3}} 2^{\frac {2}{3}} x^{2}+\left (b \,x^{3}+a \right )^{\frac {1}{3}} b^{\frac {1}{3}} 2^{\frac {1}{3}} x +\left (b \,x^{3}+a \right )^{\frac {2}{3}}}{x^{2}}\right )-2 \ln \left (\frac {-2^{\frac {1}{3}} b^{\frac {1}{3}} x +\left (b \,x^{3}+a \right )^{\frac {1}{3}}}{x}\right )\right ) b^{\frac {7}{3}} 2^{\frac {1}{3}}}{42 x^{7} a^{3} d}\)	\(160\)

Input:

int((b*x^3+a)^(1/3)/x^8/(-b*d*x^3+a*d),x,method=_RETURNVERBOSE)
 

Output:

1/42*((-48*b^2*x^6-12*a*b*x^3-6*a^2)*(b*x^3+a)^(1/3)+7*x^7*(2*arctan(1/3*3 
^(1/2)*(2^(2/3)*(b*x^3+a)^(1/3)+b^(1/3)*x)/b^(1/3)/x)*3^(1/2)+ln((b^(2/3)* 
2^(2/3)*x^2+(b*x^3+a)^(1/3)*b^(1/3)*2^(1/3)*x+(b*x^3+a)^(2/3))/x^2)-2*ln(( 
-2^(1/3)*b^(1/3)*x+(b*x^3+a)^(1/3))/x))*b^(7/3)*2^(1/3))/x^7/a^3/d
 

Fricas [F(-1)]

Timed out. \[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=\text {Timed out} \] Input:

integrate((b*x^3+a)^(1/3)/x^8/(-b*d*x^3+a*d),x, algorithm="fricas")
 

Output:

Timed out
 

Sympy [F]

\[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=- \frac {\int \frac {\sqrt [3]{a + b x^{3}}}{- a x^{8} + b x^{11}}\, dx}{d} \] Input:

integrate((b*x**3+a)**(1/3)/x**8/(-b*d*x**3+a*d),x)
 

Output:

-Integral((a + b*x**3)**(1/3)/(-a*x**8 + b*x**11), x)/d
 

Maxima [F]

\[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=\int { -\frac {{\left (b x^{3} + a\right )}^{\frac {1}{3}}}{{\left (b d x^{3} - a d\right )} x^{8}} \,d x } \] Input:

integrate((b*x^3+a)^(1/3)/x^8/(-b*d*x^3+a*d),x, algorithm="maxima")
 

Output:

-integrate((b*x^3 + a)^(1/3)/((b*d*x^3 - a*d)*x^8), x)
 

Giac [F]

\[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=\int { -\frac {{\left (b x^{3} + a\right )}^{\frac {1}{3}}}{{\left (b d x^{3} - a d\right )} x^{8}} \,d x } \] Input:

integrate((b*x^3+a)^(1/3)/x^8/(-b*d*x^3+a*d),x, algorithm="giac")
 

Output:

integrate(-(b*x^3 + a)^(1/3)/((b*d*x^3 - a*d)*x^8), x)
 

Mupad [F(-1)]

Timed out. \[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=\int \frac {{\left (b\,x^3+a\right )}^{1/3}}{x^8\,\left (a\,d-b\,d\,x^3\right )} \,d x \] Input:

int((a + b*x^3)^(1/3)/(x^8*(a*d - b*d*x^3)),x)
 

Output:

int((a + b*x^3)^(1/3)/(x^8*(a*d - b*d*x^3)), x)
 

Reduce [F]

\[ \int \frac {\sqrt [3]{a+b x^3}}{x^8 \left (a d-b d x^3\right )} \, dx=\frac {-\left (b \,x^{3}+a \right )^{\frac {1}{3}} a^{2}-2 \left (b \,x^{3}+a \right )^{\frac {1}{3}} a b \,x^{3}+6 \left (b \,x^{3}+a \right )^{\frac {1}{3}} b^{2} x^{6}+14 \left (\int \frac {\left (b \,x^{3}+a \right )^{\frac {1}{3}}}{-b^{2} x^{8}+a^{2} x^{2}}d x \right ) a^{2} b^{2} x^{7}}{7 a^{3} d \,x^{7}} \] Input:

int((b*x^3+a)^(1/3)/x^8/(-b*d*x^3+a*d),x)
 

Output:

( - (a + b*x**3)**(1/3)*a**2 - 2*(a + b*x**3)**(1/3)*a*b*x**3 + 6*(a + b*x 
**3)**(1/3)*b**2*x**6 + 14*int((a + b*x**3)**(1/3)/(a**2*x**2 - b**2*x**8) 
,x)*a**2*b**2*x**7)/(7*a**3*d*x**7)