3.262 \(\int \frac {\sqrt {d+e x^2} (a+b \log (c x^n))}{x^8} \, dx\)

Optimal. Leaf size=230 \[ -\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {8 b e^{7/2} n \tanh ^{-1}\left (\frac {\sqrt {e} x}{\sqrt {d+e x^2}}\right )}{105 d^3}-\frac {8 b e^3 n \sqrt {d+e x^2}}{105 d^3 x}-\frac {8 b e^2 n \left (d+e x^2\right )^{3/2}}{315 d^3 x^3}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7} \]

[Out]

-1/49*b*n*(e*x^2+d)^(3/2)/d/x^7+13/1225*b*e*n*(e*x^2+d)^(3/2)/d^2/x^5+62/11025*b*e^2*n*(e*x^2+d)^(3/2)/d^3/x^3
+8/105*b*e^(7/2)*n*arctanh(x*e^(1/2)/(e*x^2+d)^(1/2))/d^3-1/7*(e*x^2+d)^(3/2)*(a+b*ln(c*x^n))/d/x^7+4/35*e*(e*
x^2+d)^(3/2)*(a+b*ln(c*x^n))/d^2/x^5-8/105*e^2*(e*x^2+d)^(3/2)*(a+b*ln(c*x^n))/d^3/x^3-8/105*b*e^3*n*(e*x^2+d)
^(1/2)/d^3/x

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Rubi [A]  time = 0.20, antiderivative size = 230, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 9, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.360, Rules used = {271, 264, 2350, 12, 1265, 451, 277, 217, 206} \[ -\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}-\frac {8 b e^3 n \sqrt {d+e x^2}}{105 d^3 x}-\frac {8 b e^2 n \left (d+e x^2\right )^{3/2}}{315 d^3 x^3}+\frac {8 b e^{7/2} n \tanh ^{-1}\left (\frac {\sqrt {e} x}{\sqrt {d+e x^2}}\right )}{105 d^3}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7} \]

Antiderivative was successfully verified.

[In]

Int[(Sqrt[d + e*x^2]*(a + b*Log[c*x^n]))/x^8,x]

[Out]

(-8*b*e^3*n*Sqrt[d + e*x^2])/(105*d^3*x) - (8*b*e^2*n*(d + e*x^2)^(3/2))/(315*d^3*x^3) - (b*n*(d + e*x^2)^(5/2
))/(49*d^2*x^7) + (38*b*e*n*(d + e*x^2)^(5/2))/(1225*d^3*x^5) + (8*b*e^(7/2)*n*ArcTanh[(Sqrt[e]*x)/Sqrt[d + e*
x^2]])/(105*d^3) - ((d + e*x^2)^(3/2)*(a + b*Log[c*x^n]))/(7*d*x^7) + (4*e*(d + e*x^2)^(3/2)*(a + b*Log[c*x^n]
))/(35*d^2*x^5) - (8*e^2*(d + e*x^2)^(3/2)*(a + b*Log[c*x^n]))/(105*d^3*x^3)

Rule 12

Int[(a_)*(u_), x_Symbol] :> Dist[a, Int[u, x], x] /; FreeQ[a, x] &&  !MatchQ[u, (b_)*(v_) /; FreeQ[b, x]]

Rule 206

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(1*ArcTanh[(Rt[-b, 2]*x)/Rt[a, 2]])/(Rt[a, 2]*Rt[-b, 2]), x]
/; FreeQ[{a, b}, x] && NegQ[a/b] && (GtQ[a, 0] || LtQ[b, 0])

Rule 217

Int[1/Sqrt[(a_) + (b_.)*(x_)^2], x_Symbol] :> Subst[Int[1/(1 - b*x^2), x], x, x/Sqrt[a + b*x^2]] /; FreeQ[{a,
b}, x] &&  !GtQ[a, 0]

Rule 264

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[((c*x)^(m + 1)*(a + b*x^n)^(p + 1))/(a
*c*(m + 1)), x] /; FreeQ[{a, b, c, m, n, p}, x] && EqQ[(m + 1)/n + p + 1, 0] && NeQ[m, -1]

Rule 271

Int[(x_)^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(x^(m + 1)*(a + b*x^n)^(p + 1))/(a*(m + 1)), x]
- Dist[(b*(m + n*(p + 1) + 1))/(a*(m + 1)), Int[x^(m + n)*(a + b*x^n)^p, x], x] /; FreeQ[{a, b, m, n, p}, x]
&& ILtQ[Simplify[(m + 1)/n + p + 1], 0] && NeQ[m, -1]

Rule 277

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[((c*x)^(m + 1)*(a + b*x^n)^p)/(c*(m +
1)), x] - Dist[(b*n*p)/(c^n*(m + 1)), Int[(c*x)^(m + n)*(a + b*x^n)^(p - 1), x], x] /; FreeQ[{a, b, c}, x] &&
IGtQ[n, 0] && GtQ[p, 0] && LtQ[m, -1] &&  !ILtQ[(m + n*p + n + 1)/n, 0] && IntBinomialQ[a, b, c, n, m, p, x]

Rule 451

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

Rule 1265

Int[((f_.)*(x_))^(m_)*((d_) + (e_.)*(x_)^2)^(q_.)*((a_) + (b_.)*(x_)^2 + (c_.)*(x_)^4)^(p_.), x_Symbol] :> Wit
h[{Qx = PolynomialQuotient[(a + b*x^2 + c*x^4)^p, f*x, x], R = PolynomialRemainder[(a + b*x^2 + c*x^4)^p, f*x,
x]}, Simp[(R*(f*x)^(m + 1)*(d + e*x^2)^(q + 1))/(d*f*(m + 1)), x] + Dist[1/(d*f^2*(m + 1)), Int[(f*x)^(m + 2)
*(d + e*x^2)^q*ExpandToSum[(d*f*(m + 1)*Qx)/x - e*R*(m + 2*q + 3), x], x], x]] /; FreeQ[{a, b, c, d, e, f, q},
x] && NeQ[b^2 - 4*a*c, 0] && IGtQ[p, 0] && LtQ[m, -1]

Rule 2350

Int[((a_.) + Log[(c_.)*(x_)^(n_.)]*(b_.))*((f_.)*(x_))^(m_.)*((d_) + (e_.)*(x_)^(r_.))^(q_.), x_Symbol] :> Wit
h[{u = IntHide[(f*x)^m*(d + e*x^r)^q, x]}, Dist[a + b*Log[c*x^n], u, x] - Dist[b*n, Int[SimplifyIntegrand[u/x,
x], x], x] /; ((EqQ[r, 1] || EqQ[r, 2]) && IntegerQ[m] && IntegerQ[q - 1/2]) || InverseFunctionFreeQ[u, x]] /
; FreeQ[{a, b, c, d, e, f, m, n, q, r}, x] && IntegerQ[2*q] && ((IntegerQ[m] && IntegerQ[r]) || IGtQ[q, 0])

Rubi steps

\begin {align*} \int \frac {\sqrt {d+e x^2} \left (a+b \log \left (c x^n\right )\right )}{x^8} \, dx &=-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}-(b n) \int \frac {\left (d+e x^2\right )^{3/2} \left (-15 d^2+12 d e x^2-8 e^2 x^4\right )}{105 d^3 x^8} \, dx\\ &=-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}-\frac {(b n) \int \frac {\left (d+e x^2\right )^{3/2} \left (-15 d^2+12 d e x^2-8 e^2 x^4\right )}{x^8} \, dx}{105 d^3}\\ &=-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {(b n) \int \frac {\left (d+e x^2\right )^{3/2} \left (-114 d^2 e+56 d e^2 x^2\right )}{x^6} \, dx}{735 d^4}\\ &=-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {\left (8 b e^2 n\right ) \int \frac {\left (d+e x^2\right )^{3/2}}{x^4} \, dx}{105 d^3}\\ &=-\frac {8 b e^2 n \left (d+e x^2\right )^{3/2}}{315 d^3 x^3}-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {\left (8 b e^3 n\right ) \int \frac {\sqrt {d+e x^2}}{x^2} \, dx}{105 d^3}\\ &=-\frac {8 b e^3 n \sqrt {d+e x^2}}{105 d^3 x}-\frac {8 b e^2 n \left (d+e x^2\right )^{3/2}}{315 d^3 x^3}-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {\left (8 b e^4 n\right ) \int \frac {1}{\sqrt {d+e x^2}} \, dx}{105 d^3}\\ &=-\frac {8 b e^3 n \sqrt {d+e x^2}}{105 d^3 x}-\frac {8 b e^2 n \left (d+e x^2\right )^{3/2}}{315 d^3 x^3}-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}+\frac {\left (8 b e^4 n\right ) \operatorname {Subst}\left (\int \frac {1}{1-e x^2} \, dx,x,\frac {x}{\sqrt {d+e x^2}}\right )}{105 d^3}\\ &=-\frac {8 b e^3 n \sqrt {d+e x^2}}{105 d^3 x}-\frac {8 b e^2 n \left (d+e x^2\right )^{3/2}}{315 d^3 x^3}-\frac {b n \left (d+e x^2\right )^{5/2}}{49 d^2 x^7}+\frac {38 b e n \left (d+e x^2\right )^{5/2}}{1225 d^3 x^5}+\frac {8 b e^{7/2} n \tanh ^{-1}\left (\frac {\sqrt {e} x}{\sqrt {d+e x^2}}\right )}{105 d^3}-\frac {\left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{7 d x^7}+\frac {4 e \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{35 d^2 x^5}-\frac {8 e^2 \left (d+e x^2\right )^{3/2} \left (a+b \log \left (c x^n\right )\right )}{105 d^3 x^3}\\ \end {align*}

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Mathematica [A]  time = 0.24, size = 180, normalized size = 0.78 \[ -\frac {\sqrt {d+e x^2} \left (105 a \left (15 d^3+3 d^2 e x^2-4 d e^2 x^4+8 e^3 x^6\right )+b n \left (225 d^3+108 d^2 e x^2-179 d e^2 x^4+778 e^3 x^6\right )\right )+105 b \sqrt {d+e x^2} \left (15 d^3+3 d^2 e x^2-4 d e^2 x^4+8 e^3 x^6\right ) \log \left (c x^n\right )-840 b e^{7/2} n x^7 \log \left (\sqrt {e} \sqrt {d+e x^2}+e x\right )}{11025 d^3 x^7} \]

Antiderivative was successfully verified.

[In]

Integrate[(Sqrt[d + e*x^2]*(a + b*Log[c*x^n]))/x^8,x]

[Out]

-1/11025*(Sqrt[d + e*x^2]*(105*a*(15*d^3 + 3*d^2*e*x^2 - 4*d*e^2*x^4 + 8*e^3*x^6) + b*n*(225*d^3 + 108*d^2*e*x
^2 - 179*d*e^2*x^4 + 778*e^3*x^6)) + 105*b*Sqrt[d + e*x^2]*(15*d^3 + 3*d^2*e*x^2 - 4*d*e^2*x^4 + 8*e^3*x^6)*Lo
g[c*x^n] - 840*b*e^(7/2)*n*x^7*Log[e*x + Sqrt[e]*Sqrt[d + e*x^2]])/(d^3*x^7)

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fricas [A]  time = 0.54, size = 426, normalized size = 1.85 \[ \left [\frac {420 \, b e^{\frac {7}{2}} n x^{7} \log \left (-2 \, e x^{2} - 2 \, \sqrt {e x^{2} + d} \sqrt {e} x - d\right ) - {\left (2 \, {\left (389 \, b e^{3} n + 420 \, a e^{3}\right )} x^{6} + 225 \, b d^{3} n - {\left (179 \, b d e^{2} n + 420 \, a d e^{2}\right )} x^{4} + 1575 \, a d^{3} + 9 \, {\left (12 \, b d^{2} e n + 35 \, a d^{2} e\right )} x^{2} + 105 \, {\left (8 \, b e^{3} x^{6} - 4 \, b d e^{2} x^{4} + 3 \, b d^{2} e x^{2} + 15 \, b d^{3}\right )} \log \relax (c) + 105 \, {\left (8 \, b e^{3} n x^{6} - 4 \, b d e^{2} n x^{4} + 3 \, b d^{2} e n x^{2} + 15 \, b d^{3} n\right )} \log \relax (x)\right )} \sqrt {e x^{2} + d}}{11025 \, d^{3} x^{7}}, -\frac {840 \, b \sqrt {-e} e^{3} n x^{7} \arctan \left (\frac {\sqrt {-e} x}{\sqrt {e x^{2} + d}}\right ) + {\left (2 \, {\left (389 \, b e^{3} n + 420 \, a e^{3}\right )} x^{6} + 225 \, b d^{3} n - {\left (179 \, b d e^{2} n + 420 \, a d e^{2}\right )} x^{4} + 1575 \, a d^{3} + 9 \, {\left (12 \, b d^{2} e n + 35 \, a d^{2} e\right )} x^{2} + 105 \, {\left (8 \, b e^{3} x^{6} - 4 \, b d e^{2} x^{4} + 3 \, b d^{2} e x^{2} + 15 \, b d^{3}\right )} \log \relax (c) + 105 \, {\left (8 \, b e^{3} n x^{6} - 4 \, b d e^{2} n x^{4} + 3 \, b d^{2} e n x^{2} + 15 \, b d^{3} n\right )} \log \relax (x)\right )} \sqrt {e x^{2} + d}}{11025 \, d^{3} x^{7}}\right ] \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*log(c*x^n))*(e*x^2+d)^(1/2)/x^8,x, algorithm="fricas")

[Out]

[1/11025*(420*b*e^(7/2)*n*x^7*log(-2*e*x^2 - 2*sqrt(e*x^2 + d)*sqrt(e)*x - d) - (2*(389*b*e^3*n + 420*a*e^3)*x
^6 + 225*b*d^3*n - (179*b*d*e^2*n + 420*a*d*e^2)*x^4 + 1575*a*d^3 + 9*(12*b*d^2*e*n + 35*a*d^2*e)*x^2 + 105*(8
*b*e^3*x^6 - 4*b*d*e^2*x^4 + 3*b*d^2*e*x^2 + 15*b*d^3)*log(c) + 105*(8*b*e^3*n*x^6 - 4*b*d*e^2*n*x^4 + 3*b*d^2
*e*n*x^2 + 15*b*d^3*n)*log(x))*sqrt(e*x^2 + d))/(d^3*x^7), -1/11025*(840*b*sqrt(-e)*e^3*n*x^7*arctan(sqrt(-e)*
x/sqrt(e*x^2 + d)) + (2*(389*b*e^3*n + 420*a*e^3)*x^6 + 225*b*d^3*n - (179*b*d*e^2*n + 420*a*d*e^2)*x^4 + 1575
*a*d^3 + 9*(12*b*d^2*e*n + 35*a*d^2*e)*x^2 + 105*(8*b*e^3*x^6 - 4*b*d*e^2*x^4 + 3*b*d^2*e*x^2 + 15*b*d^3)*log(
c) + 105*(8*b*e^3*n*x^6 - 4*b*d*e^2*n*x^4 + 3*b*d^2*e*n*x^2 + 15*b*d^3*n)*log(x))*sqrt(e*x^2 + d))/(d^3*x^7)]

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\sqrt {e x^{2} + d} {\left (b \log \left (c x^{n}\right ) + a\right )}}{x^{8}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*log(c*x^n))*(e*x^2+d)^(1/2)/x^8,x, algorithm="giac")

[Out]

integrate(sqrt(e*x^2 + d)*(b*log(c*x^n) + a)/x^8, x)

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maple [F]  time = 0.46, size = 0, normalized size = 0.00 \[ \int \frac {\left (b \ln \left (c \,x^{n}\right )+a \right ) \sqrt {e \,x^{2}+d}}{x^{8}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b*ln(c*x^n)+a)*(e*x^2+d)^(1/2)/x^8,x)

[Out]

int((b*ln(c*x^n)+a)*(e*x^2+d)^(1/2)/x^8,x)

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ -\frac {1}{105} \, a {\left (\frac {8 \, {\left (e x^{2} + d\right )}^{\frac {3}{2}} e^{2}}{d^{3} x^{3}} - \frac {12 \, {\left (e x^{2} + d\right )}^{\frac {3}{2}} e}{d^{2} x^{5}} + \frac {15 \, {\left (e x^{2} + d\right )}^{\frac {3}{2}}}{d x^{7}}\right )} + b \int \frac {\sqrt {e x^{2} + d} {\left (\log \relax (c) + \log \left (x^{n}\right )\right )}}{x^{8}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*log(c*x^n))*(e*x^2+d)^(1/2)/x^8,x, algorithm="maxima")

[Out]

-1/105*a*(8*(e*x^2 + d)^(3/2)*e^2/(d^3*x^3) - 12*(e*x^2 + d)^(3/2)*e/(d^2*x^5) + 15*(e*x^2 + d)^(3/2)/(d*x^7))
+ b*integrate(sqrt(e*x^2 + d)*(log(c) + log(x^n))/x^8, x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.00 \[ \int \frac {\sqrt {e\,x^2+d}\,\left (a+b\,\ln \left (c\,x^n\right )\right )}{x^8} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(((d + e*x^2)^(1/2)*(a + b*log(c*x^n)))/x^8,x)

[Out]

int(((d + e*x^2)^(1/2)*(a + b*log(c*x^n)))/x^8, x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {\left (a + b \log {\left (c x^{n} \right )}\right ) \sqrt {d + e x^{2}}}{x^{8}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a+b*ln(c*x**n))*(e*x**2+d)**(1/2)/x**8,x)

[Out]

Integral((a + b*log(c*x**n))*sqrt(d + e*x**2)/x**8, x)

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