Optimal. Leaf size=128 \[ \frac{c \left (3 a^2 d^2-3 a b c d+b^2 c^2\right ) \log (c+d x)}{d^3 (b c-a d)^3}-\frac{a^3 \log (a+b x)}{b (b c-a d)^3}+\frac{c^2 (2 b c-3 a d)}{d^3 (c+d x) (b c-a d)^2}-\frac{c^3}{2 d^3 (c+d x)^2 (b c-a d)} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.106833, antiderivative size = 128, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 1, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.056, Rules used = {88} \[ \frac{c \left (3 a^2 d^2-3 a b c d+b^2 c^2\right ) \log (c+d x)}{d^3 (b c-a d)^3}-\frac{a^3 \log (a+b x)}{b (b c-a d)^3}+\frac{c^2 (2 b c-3 a d)}{d^3 (c+d x) (b c-a d)^2}-\frac{c^3}{2 d^3 (c+d x)^2 (b c-a d)} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 88
Rubi steps
\begin{align*} \int \frac{x^3}{(a+b x) (c+d x)^3} \, dx &=\int \left (-\frac{a^3}{(b c-a d)^3 (a+b x)}-\frac{c^3}{d^2 (-b c+a d) (c+d x)^3}-\frac{c^2 (2 b c-3 a d)}{d^2 (-b c+a d)^2 (c+d x)^2}-\frac{c \left (b^2 c^2-3 a b c d+3 a^2 d^2\right )}{d^2 (-b c+a d)^3 (c+d x)}\right ) \, dx\\ &=-\frac{c^3}{2 d^3 (b c-a d) (c+d x)^2}+\frac{c^2 (2 b c-3 a d)}{d^3 (b c-a d)^2 (c+d x)}-\frac{a^3 \log (a+b x)}{b (b c-a d)^3}+\frac{c \left (b^2 c^2-3 a b c d+3 a^2 d^2\right ) \log (c+d x)}{d^3 (b c-a d)^3}\\ \end{align*}
Mathematica [A] time = 0.0596631, size = 134, normalized size = 1.05 \[ -\frac{\left (-3 a^2 c d^2+3 a b c^2 d-b^2 c^3\right ) \log (c+d x)}{d^3 (b c-a d)^3}-\frac{a^3 \log (a+b x)}{b (b c-a d)^3}+\frac{2 b c^3-3 a c^2 d}{d^3 (c+d x) (a d-b c)^2}+\frac{c^3}{2 d^3 (c+d x)^2 (a d-b c)} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.008, size = 180, normalized size = 1.4 \begin{align*} -3\,{\frac{{c}^{2}a}{{d}^{2} \left ( ad-bc \right ) ^{2} \left ( dx+c \right ) }}+2\,{\frac{{c}^{3}b}{{d}^{3} \left ( ad-bc \right ) ^{2} \left ( dx+c \right ) }}+{\frac{{c}^{3}}{2\,{d}^{3} \left ( ad-bc \right ) \left ( dx+c \right ) ^{2}}}-3\,{\frac{c\ln \left ( dx+c \right ){a}^{2}}{d \left ( ad-bc \right ) ^{3}}}+3\,{\frac{{c}^{2}\ln \left ( dx+c \right ) ab}{ \left ( ad-bc \right ) ^{3}{d}^{2}}}-{\frac{{c}^{3}\ln \left ( dx+c \right ){b}^{2}}{ \left ( ad-bc \right ) ^{3}{d}^{3}}}+{\frac{{a}^{3}\ln \left ( bx+a \right ) }{ \left ( ad-bc \right ) ^{3}b}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [B] time = 1.16668, size = 350, normalized size = 2.73 \begin{align*} -\frac{a^{3} \log \left (b x + a\right )}{b^{4} c^{3} - 3 \, a b^{3} c^{2} d + 3 \, a^{2} b^{2} c d^{2} - a^{3} b d^{3}} + \frac{{\left (b^{2} c^{3} - 3 \, a b c^{2} d + 3 \, a^{2} c d^{2}\right )} \log \left (d x + c\right )}{b^{3} c^{3} d^{3} - 3 \, a b^{2} c^{2} d^{4} + 3 \, a^{2} b c d^{5} - a^{3} d^{6}} + \frac{3 \, b c^{4} - 5 \, a c^{3} d + 2 \,{\left (2 \, b c^{3} d - 3 \, a c^{2} d^{2}\right )} x}{2 \,{\left (b^{2} c^{4} d^{3} - 2 \, a b c^{3} d^{4} + a^{2} c^{2} d^{5} +{\left (b^{2} c^{2} d^{5} - 2 \, a b c d^{6} + a^{2} d^{7}\right )} x^{2} + 2 \,{\left (b^{2} c^{3} d^{4} - 2 \, a b c^{2} d^{5} + a^{2} c d^{6}\right )} x\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [B] time = 2.34761, size = 736, normalized size = 5.75 \begin{align*} \frac{3 \, b^{3} c^{5} - 8 \, a b^{2} c^{4} d + 5 \, a^{2} b c^{3} d^{2} + 2 \,{\left (2 \, b^{3} c^{4} d - 5 \, a b^{2} c^{3} d^{2} + 3 \, a^{2} b c^{2} d^{3}\right )} x - 2 \,{\left (a^{3} d^{5} x^{2} + 2 \, a^{3} c d^{4} x + a^{3} c^{2} d^{3}\right )} \log \left (b x + a\right ) + 2 \,{\left (b^{3} c^{5} - 3 \, a b^{2} c^{4} d + 3 \, a^{2} b c^{3} d^{2} +{\left (b^{3} c^{3} d^{2} - 3 \, a b^{2} c^{2} d^{3} + 3 \, a^{2} b c d^{4}\right )} x^{2} + 2 \,{\left (b^{3} c^{4} d - 3 \, a b^{2} c^{3} d^{2} + 3 \, a^{2} b c^{2} d^{3}\right )} x\right )} \log \left (d x + c\right )}{2 \,{\left (b^{4} c^{5} d^{3} - 3 \, a b^{3} c^{4} d^{4} + 3 \, a^{2} b^{2} c^{3} d^{5} - a^{3} b c^{2} d^{6} +{\left (b^{4} c^{3} d^{5} - 3 \, a b^{3} c^{2} d^{6} + 3 \, a^{2} b^{2} c d^{7} - a^{3} b d^{8}\right )} x^{2} + 2 \,{\left (b^{4} c^{4} d^{4} - 3 \, a b^{3} c^{3} d^{5} + 3 \, a^{2} b^{2} c^{2} d^{6} - a^{3} b c d^{7}\right )} x\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [B] time = 3.53052, size = 653, normalized size = 5.1 \begin{align*} \frac{a^{3} \log{\left (x + \frac{\frac{a^{7} d^{6}}{b \left (a d - b c\right )^{3}} - \frac{4 a^{6} c d^{5}}{\left (a d - b c\right )^{3}} + \frac{6 a^{5} b c^{2} d^{4}}{\left (a d - b c\right )^{3}} - \frac{4 a^{4} b^{2} c^{3} d^{3}}{\left (a d - b c\right )^{3}} + \frac{a^{3} b^{3} c^{4} d^{2}}{\left (a d - b c\right )^{3}} + 4 a^{3} c d^{2} - 3 a^{2} b c^{2} d + a b^{2} c^{3}}{a^{3} d^{3} + 3 a^{2} b c d^{2} - 3 a b^{2} c^{2} d + b^{3} c^{3}} \right )}}{b \left (a d - b c\right )^{3}} - \frac{c \left (3 a^{2} d^{2} - 3 a b c d + b^{2} c^{2}\right ) \log{\left (x + \frac{- \frac{a^{4} c d^{3} \left (3 a^{2} d^{2} - 3 a b c d + b^{2} c^{2}\right )}{\left (a d - b c\right )^{3}} + \frac{4 a^{3} b c^{2} d^{2} \left (3 a^{2} d^{2} - 3 a b c d + b^{2} c^{2}\right )}{\left (a d - b c\right )^{3}} + 4 a^{3} c d^{2} - \frac{6 a^{2} b^{2} c^{3} d \left (3 a^{2} d^{2} - 3 a b c d + b^{2} c^{2}\right )}{\left (a d - b c\right )^{3}} - 3 a^{2} b c^{2} d + \frac{4 a b^{3} c^{4} \left (3 a^{2} d^{2} - 3 a b c d + b^{2} c^{2}\right )}{\left (a d - b c\right )^{3}} + a b^{2} c^{3} - \frac{b^{4} c^{5} \left (3 a^{2} d^{2} - 3 a b c d + b^{2} c^{2}\right )}{d \left (a d - b c\right )^{3}}}{a^{3} d^{3} + 3 a^{2} b c d^{2} - 3 a b^{2} c^{2} d + b^{3} c^{3}} \right )}}{d^{3} \left (a d - b c\right )^{3}} - \frac{5 a c^{3} d - 3 b c^{4} + x \left (6 a c^{2} d^{2} - 4 b c^{3} d\right )}{2 a^{2} c^{2} d^{5} - 4 a b c^{3} d^{4} + 2 b^{2} c^{4} d^{3} + x^{2} \left (2 a^{2} d^{7} - 4 a b c d^{6} + 2 b^{2} c^{2} d^{5}\right ) + x \left (4 a^{2} c d^{6} - 8 a b c^{2} d^{5} + 4 b^{2} c^{3} d^{4}\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 3.04267, size = 292, normalized size = 2.28 \begin{align*} -\frac{a^{3} \log \left ({\left | b x + a \right |}\right )}{b^{4} c^{3} - 3 \, a b^{3} c^{2} d + 3 \, a^{2} b^{2} c d^{2} - a^{3} b d^{3}} + \frac{{\left (b^{2} c^{3} - 3 \, a b c^{2} d + 3 \, a^{2} c d^{2}\right )} \log \left ({\left | d x + c \right |}\right )}{b^{3} c^{3} d^{3} - 3 \, a b^{2} c^{2} d^{4} + 3 \, a^{2} b c d^{5} - a^{3} d^{6}} + \frac{2 \,{\left (2 \, b^{2} c^{4} - 5 \, a b c^{3} d + 3 \, a^{2} c^{2} d^{2}\right )} x + \frac{3 \, b^{2} c^{5} - 8 \, a b c^{4} d + 5 \, a^{2} c^{3} d^{2}}{d}}{2 \,{\left (b c - a d\right )}^{3}{\left (d x + c\right )}^{2} d^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]