3.92 \(\int \frac{A+B x^3}{x \left (a+b x^3\right )^3} \, dx\)

Optimal. Leaf size=68 \[ -\frac{A \log \left (a+b x^3\right )}{3 a^3}+\frac{A \log (x)}{a^3}+\frac{A}{3 a^2 \left (a+b x^3\right )}+\frac{A b-a B}{6 a b \left (a+b x^3\right )^2} \]

[Out]

(A*b - a*B)/(6*a*b*(a + b*x^3)^2) + A/(3*a^2*(a + b*x^3)) + (A*Log[x])/a^3 - (A*
Log[a + b*x^3])/(3*a^3)

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Rubi [A]  time = 0.160286, antiderivative size = 68, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 20, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.1 \[ -\frac{A \log \left (a+b x^3\right )}{3 a^3}+\frac{A \log (x)}{a^3}+\frac{A}{3 a^2 \left (a+b x^3\right )}+\frac{A b-a B}{6 a b \left (a+b x^3\right )^2} \]

Antiderivative was successfully verified.

[In]  Int[(A + B*x^3)/(x*(a + b*x^3)^3),x]

[Out]

(A*b - a*B)/(6*a*b*(a + b*x^3)^2) + A/(3*a^2*(a + b*x^3)) + (A*Log[x])/a^3 - (A*
Log[a + b*x^3])/(3*a^3)

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Rubi in Sympy [A]  time = 18.227, size = 60, normalized size = 0.88 \[ \frac{A}{3 a^{2} \left (a + b x^{3}\right )} + \frac{A \log{\left (x^{3} \right )}}{3 a^{3}} - \frac{A \log{\left (a + b x^{3} \right )}}{3 a^{3}} + \frac{A b - B a}{6 a b \left (a + b x^{3}\right )^{2}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  rubi_integrate((B*x**3+A)/x/(b*x**3+a)**3,x)

[Out]

A/(3*a**2*(a + b*x**3)) + A*log(x**3)/(3*a**3) - A*log(a + b*x**3)/(3*a**3) + (A
*b - B*a)/(6*a*b*(a + b*x**3)**2)

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Mathematica [A]  time = 0.0846259, size = 59, normalized size = 0.87 \[ \frac{\frac{a \left (-a^2 B+3 a A b+2 A b^2 x^3\right )}{b \left (a+b x^3\right )^2}-2 A \log \left (a+b x^3\right )+6 A \log (x)}{6 a^3} \]

Antiderivative was successfully verified.

[In]  Integrate[(A + B*x^3)/(x*(a + b*x^3)^3),x]

[Out]

((a*(3*a*A*b - a^2*B + 2*A*b^2*x^3))/(b*(a + b*x^3)^2) + 6*A*Log[x] - 2*A*Log[a
+ b*x^3])/(6*a^3)

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Maple [A]  time = 0.012, size = 68, normalized size = 1. \[{\frac{A\ln \left ( x \right ) }{{a}^{3}}}+{\frac{A}{6\,a \left ( b{x}^{3}+a \right ) ^{2}}}-{\frac{B}{6\,b \left ( b{x}^{3}+a \right ) ^{2}}}-{\frac{A\ln \left ( b{x}^{3}+a \right ) }{3\,{a}^{3}}}+{\frac{A}{3\,{a}^{2} \left ( b{x}^{3}+a \right ) }} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  int((B*x^3+A)/x/(b*x^3+a)^3,x)

[Out]

A*ln(x)/a^3+1/6/a/(b*x^3+a)^2*A-1/6/b/(b*x^3+a)^2*B-1/3*A*ln(b*x^3+a)/a^3+1/3*A/
a^2/(b*x^3+a)

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Maxima [A]  time = 1.36782, size = 104, normalized size = 1.53 \[ \frac{2 \, A b^{2} x^{3} - B a^{2} + 3 \, A a b}{6 \,{\left (a^{2} b^{3} x^{6} + 2 \, a^{3} b^{2} x^{3} + a^{4} b\right )}} - \frac{A \log \left (b x^{3} + a\right )}{3 \, a^{3}} + \frac{A \log \left (x^{3}\right )}{3 \, a^{3}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((B*x^3 + A)/((b*x^3 + a)^3*x),x, algorithm="maxima")

[Out]

1/6*(2*A*b^2*x^3 - B*a^2 + 3*A*a*b)/(a^2*b^3*x^6 + 2*a^3*b^2*x^3 + a^4*b) - 1/3*
A*log(b*x^3 + a)/a^3 + 1/3*A*log(x^3)/a^3

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Fricas [A]  time = 0.236833, size = 161, normalized size = 2.37 \[ \frac{2 \, A a b^{2} x^{3} - B a^{3} + 3 \, A a^{2} b - 2 \,{\left (A b^{3} x^{6} + 2 \, A a b^{2} x^{3} + A a^{2} b\right )} \log \left (b x^{3} + a\right ) + 6 \,{\left (A b^{3} x^{6} + 2 \, A a b^{2} x^{3} + A a^{2} b\right )} \log \left (x\right )}{6 \,{\left (a^{3} b^{3} x^{6} + 2 \, a^{4} b^{2} x^{3} + a^{5} b\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((B*x^3 + A)/((b*x^3 + a)^3*x),x, algorithm="fricas")

[Out]

1/6*(2*A*a*b^2*x^3 - B*a^3 + 3*A*a^2*b - 2*(A*b^3*x^6 + 2*A*a*b^2*x^3 + A*a^2*b)
*log(b*x^3 + a) + 6*(A*b^3*x^6 + 2*A*a*b^2*x^3 + A*a^2*b)*log(x))/(a^3*b^3*x^6 +
2*a^4*b^2*x^3 + a^5*b)

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Sympy [A]  time = 4.47451, size = 75, normalized size = 1.1 \[ \frac{A \log{\left (x \right )}}{a^{3}} - \frac{A \log{\left (\frac{a}{b} + x^{3} \right )}}{3 a^{3}} + \frac{3 A a b + 2 A b^{2} x^{3} - B a^{2}}{6 a^{4} b + 12 a^{3} b^{2} x^{3} + 6 a^{2} b^{3} x^{6}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((B*x**3+A)/x/(b*x**3+a)**3,x)

[Out]

A*log(x)/a**3 - A*log(a/b + x**3)/(3*a**3) + (3*A*a*b + 2*A*b**2*x**3 - B*a**2)/
(6*a**4*b + 12*a**3*b**2*x**3 + 6*a**2*b**3*x**6)

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GIAC/XCAS [A]  time = 0.219573, size = 100, normalized size = 1.47 \[ -\frac{A{\rm ln}\left ({\left | b x^{3} + a \right |}\right )}{3 \, a^{3}} + \frac{A{\rm ln}\left ({\left | x \right |}\right )}{a^{3}} + \frac{3 \, A b^{3} x^{6} + 8 \, A a b^{2} x^{3} - B a^{3} + 6 \, A a^{2} b}{6 \,{\left (b x^{3} + a\right )}^{2} a^{3} b} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((B*x^3 + A)/((b*x^3 + a)^3*x),x, algorithm="giac")

[Out]

-1/3*A*ln(abs(b*x^3 + a))/a^3 + A*ln(abs(x))/a^3 + 1/6*(3*A*b^3*x^6 + 8*A*a*b^2*
x^3 - B*a^3 + 6*A*a^2*b)/((b*x^3 + a)^2*a^3*b)