\(\int \frac {(a^2+2 a b x^3+b^2 x^6)^{3/2}}{x^{15}} \, dx\) [47]

Optimal result

Integrand size = 26, antiderivative size = 167 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {a^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{14 x^{14} \left (a+b x^3\right )}-\frac {3 a^2 b \sqrt {a^2+2 a b x^3+b^2 x^6}}{11 x^{11} \left (a+b x^3\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^3+b^2 x^6}}{8 x^8 \left (a+b x^3\right )}-\frac {b^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{5 x^5 \left (a+b x^3\right )} \]

[Out]

-1/14*a^3*((b*x^3+a)^2)^(1/2)/x^14/(b*x^3+a)-3/11*a^2*b*((b*x^3+a)^2)^(1/2)/x^11/(b*x^3+a)-3/8*a*b^2*((b*x^3+a
)^2)^(1/2)/x^8/(b*x^3+a)-1/5*b^3*((b*x^3+a)^2)^(1/2)/x^5/(b*x^3+a)

Rubi [A] (verified)

Time = 0.03 (sec) , antiderivative size = 167, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {1369, 276} \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {3 a^2 b \sqrt {a^2+2 a b x^3+b^2 x^6}}{11 x^{11} \left (a+b x^3\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^3+b^2 x^6}}{8 x^8 \left (a+b x^3\right )}-\frac {b^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{5 x^5 \left (a+b x^3\right )}-\frac {a^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{14 x^{14} \left (a+b x^3\right )} \]

[In]

Int[(a^2 + 2*a*b*x^3 + b^2*x^6)^(3/2)/x^15,x]

[Out]

-1/14*(a^3*Sqrt[a^2 + 2*a*b*x^3 + b^2*x^6])/(x^14*(a + b*x^3)) - (3*a^2*b*Sqrt[a^2 + 2*a*b*x^3 + b^2*x^6])/(11
*x^11*(a + b*x^3)) - (3*a*b^2*Sqrt[a^2 + 2*a*b*x^3 + b^2*x^6])/(8*x^8*(a + b*x^3)) - (b^3*Sqrt[a^2 + 2*a*b*x^3
+ b^2*x^6])/(5*x^5*(a + b*x^3))

Rule 276

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

Rule 1369

Int[((d_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_.) + (c_.)*(x_)^(n2_.))^(p_), x_Symbol] :> Dist[(a + b*x^n + c*x^
(2*n))^FracPart[p]/(c^IntPart[p]*(b/2 + c*x^n)^(2*FracPart[p])), Int[(d*x)^m*(b/2 + c*x^n)^(2*p), x], x] /; Fr
eeQ[{a, b, c, d, m, n, p}, x] && EqQ[n2, 2*n] && EqQ[b^2 - 4*a*c, 0] && IntegerQ[p - 1/2]

Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {a^2+2 a b x^3+b^2 x^6} \int \frac {\left (a b+b^2 x^3\right )^3}{x^{15}} \, dx}{b^2 \left (a b+b^2 x^3\right )} \\ & = \frac {\sqrt {a^2+2 a b x^3+b^2 x^6} \int \left (\frac {a^3 b^3}{x^{15}}+\frac {3 a^2 b^4}{x^{12}}+\frac {3 a b^5}{x^9}+\frac {b^6}{x^6}\right ) \, dx}{b^2 \left (a b+b^2 x^3\right )} \\ & = -\frac {a^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{14 x^{14} \left (a+b x^3\right )}-\frac {3 a^2 b \sqrt {a^2+2 a b x^3+b^2 x^6}}{11 x^{11} \left (a+b x^3\right )}-\frac {3 a b^2 \sqrt {a^2+2 a b x^3+b^2 x^6}}{8 x^8 \left (a+b x^3\right )}-\frac {b^3 \sqrt {a^2+2 a b x^3+b^2 x^6}}{5 x^5 \left (a+b x^3\right )} \\ \end{align*}

Mathematica [A] (verified)

Time = 1.01 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.37 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {\sqrt {\left (a+b x^3\right )^2} \left (220 a^3+840 a^2 b x^3+1155 a b^2 x^6+616 b^3 x^9\right )}{3080 x^{14} \left (a+b x^3\right )} \]

[In]

Integrate[(a^2 + 2*a*b*x^3 + b^2*x^6)^(3/2)/x^15,x]

[Out]

-1/3080*(Sqrt[(a + b*x^3)^2]*(220*a^3 + 840*a^2*b*x^3 + 1155*a*b^2*x^6 + 616*b^3*x^9))/(x^14*(a + b*x^3))

Maple [A] (verified)

Time = 19.19 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.34

method	result	size
risch	\(\frac {\sqrt {\left (b \,x^{3}+a \right )^{2}}\, \left (-\frac {1}{14} a^{3}-\frac {3}{11} a^{2} b \,x^{3}-\frac {3}{8} b^{2} x^{6} a -\frac {1}{5} b^{3} x^{9}\right )}{\left (b \,x^{3}+a \right ) x^{14}}\)	\(57\)
gosper	\(-\frac {\left (616 b^{3} x^{9}+1155 b^{2} x^{6} a +840 a^{2} b \,x^{3}+220 a^{3}\right ) {\left (\left (b \,x^{3}+a \right )^{2}\right )}^{\frac {3}{2}}}{3080 x^{14} \left (b \,x^{3}+a \right )^{3}}\)	\(58\)
default	\(-\frac {\left (616 b^{3} x^{9}+1155 b^{2} x^{6} a +840 a^{2} b \,x^{3}+220 a^{3}\right ) {\left (\left (b \,x^{3}+a \right )^{2}\right )}^{\frac {3}{2}}}{3080 x^{14} \left (b \,x^{3}+a \right )^{3}}\)	\(58\)

[In]

int((b^2*x^6+2*a*b*x^3+a^2)^(3/2)/x^15,x,method=_RETURNVERBOSE)

[Out]

((b*x^3+a)^2)^(1/2)/(b*x^3+a)*(-1/14*a^3-3/11*a^2*b*x^3-3/8*b^2*x^6*a-1/5*b^3*x^9)/x^14

Fricas [A] (verification not implemented)

none

Time = 0.25 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.22 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {616 \, b^{3} x^{9} + 1155 \, a b^{2} x^{6} + 840 \, a^{2} b x^{3} + 220 \, a^{3}}{3080 \, x^{14}} \]

[In]

integrate((b^2*x^6+2*a*b*x^3+a^2)^(3/2)/x^15,x, algorithm="fricas")

[Out]

-1/3080*(616*b^3*x^9 + 1155*a*b^2*x^6 + 840*a^2*b*x^3 + 220*a^3)/x^14

Sympy [F]

\[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=\int \frac {\left (\left (a + b x^{3}\right )^{2}\right )^{\frac {3}{2}}}{x^{15}}\, dx \]

[In]

integrate((b**2*x**6+2*a*b*x**3+a**2)**(3/2)/x**15,x)

[Out]

Integral(((a + b*x**3)**2)**(3/2)/x**15, x)

Maxima [A] (verification not implemented)

none

Time = 0.22 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.22 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {616 \, b^{3} x^{9} + 1155 \, a b^{2} x^{6} + 840 \, a^{2} b x^{3} + 220 \, a^{3}}{3080 \, x^{14}} \]

[In]

integrate((b^2*x^6+2*a*b*x^3+a^2)^(3/2)/x^15,x, algorithm="maxima")

[Out]

-1/3080*(616*b^3*x^9 + 1155*a*b^2*x^6 + 840*a^2*b*x^3 + 220*a^3)/x^14

Giac [A] (verification not implemented)

none

Time = 0.33 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.41 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {616 \, b^{3} x^{9} \mathrm {sgn}\left (b x^{3} + a\right ) + 1155 \, a b^{2} x^{6} \mathrm {sgn}\left (b x^{3} + a\right ) + 840 \, a^{2} b x^{3} \mathrm {sgn}\left (b x^{3} + a\right ) + 220 \, a^{3} \mathrm {sgn}\left (b x^{3} + a\right )}{3080 \, x^{14}} \]

[In]

integrate((b^2*x^6+2*a*b*x^3+a^2)^(3/2)/x^15,x, algorithm="giac")

[Out]

-1/3080*(616*b^3*x^9*sgn(b*x^3 + a) + 1155*a*b^2*x^6*sgn(b*x^3 + a) + 840*a^2*b*x^3*sgn(b*x^3 + a) + 220*a^3*s
gn(b*x^3 + a))/x^14

Mupad [B] (verification not implemented)

Time = 8.12 (sec) , antiderivative size = 151, normalized size of antiderivative = 0.90 \[ \int \frac {\left (a^2+2 a b x^3+b^2 x^6\right )^{3/2}}{x^{15}} \, dx=-\frac {a^3\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{14\,x^{14}\,\left (b\,x^3+a\right )}-\frac {b^3\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{5\,x^5\,\left (b\,x^3+a\right )}-\frac {3\,a\,b^2\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{8\,x^8\,\left (b\,x^3+a\right )}-\frac {3\,a^2\,b\,\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}}{11\,x^{11}\,\left (b\,x^3+a\right )} \]

[In]

int((a^2 + b^2*x^6 + 2*a*b*x^3)^(3/2)/x^15,x)

[Out]

- (a^3*(a^2 + b^2*x^6 + 2*a*b*x^3)^(1/2))/(14*x^14*(a + b*x^3)) - (b^3*(a^2 + b^2*x^6 + 2*a*b*x^3)^(1/2))/(5*x
^5*(a + b*x^3)) - (3*a*b^2*(a^2 + b^2*x^6 + 2*a*b*x^3)^(1/2))/(8*x^8*(a + b*x^3)) - (3*a^2*b*(a^2 + b^2*x^6 +
2*a*b*x^3)^(1/2))/(11*x^11*(a + b*x^3))