Optimal. Leaf size=51 \[ -\frac {A \log \left (b+c x^2\right )}{2 b^2}+\frac {A \log (x)}{b^2}-\frac {b B-A c}{2 b c \left (b+c x^2\right )} \]
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Rubi [A] time = 0.05, antiderivative size = 51, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {1584, 446, 77} \[ -\frac {A \log \left (b+c x^2\right )}{2 b^2}+\frac {A \log (x)}{b^2}-\frac {b B-A c}{2 b c \left (b+c x^2\right )} \]
Antiderivative was successfully verified.
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Rule 77
Rule 446
Rule 1584
Rubi steps
\begin {align*} \int \frac {x^3 \left (A+B x^2\right )}{\left (b x^2+c x^4\right )^2} \, dx &=\int \frac {A+B x^2}{x \left (b+c x^2\right )^2} \, dx\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \frac {A+B x}{x (b+c x)^2} \, dx,x,x^2\right )\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \left (\frac {A}{b^2 x}+\frac {b B-A c}{b (b+c x)^2}-\frac {A c}{b^2 (b+c x)}\right ) \, dx,x,x^2\right )\\ &=-\frac {b B-A c}{2 b c \left (b+c x^2\right )}+\frac {A \log (x)}{b^2}-\frac {A \log \left (b+c x^2\right )}{2 b^2}\\ \end {align*}
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Mathematica [A] time = 0.03, size = 46, normalized size = 0.90 \[ \frac {\frac {b (A c-b B)}{c \left (b+c x^2\right )}-A \log \left (b+c x^2\right )+2 A \log (x)}{2 b^2} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.88, size = 70, normalized size = 1.37 \[ -\frac {B b^{2} - A b c + {\left (A c^{2} x^{2} + A b c\right )} \log \left (c x^{2} + b\right ) - 2 \, {\left (A c^{2} x^{2} + A b c\right )} \log \relax (x)}{2 \, {\left (b^{2} c^{2} x^{2} + b^{3} c\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.16, size = 52, normalized size = 1.02 \[ -\frac {A \log \left ({\left | c x^{2} + b \right |}\right )}{2 \, b^{2}} + \frac {A \log \left ({\left | x \right |}\right )}{b^{2}} - \frac {B b^{2} - A b c}{2 \, {\left (c x^{2} + b\right )} b^{2} c} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.06, size = 53, normalized size = 1.04 \[ \frac {A}{2 \left (c \,x^{2}+b \right ) b}+\frac {A \ln \relax (x )}{b^{2}}-\frac {A \ln \left (c \,x^{2}+b \right )}{2 b^{2}}-\frac {B}{2 \left (c \,x^{2}+b \right ) c} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.31, size = 51, normalized size = 1.00 \[ -\frac {B b - A c}{2 \, {\left (b c^{2} x^{2} + b^{2} c\right )}} - \frac {A \log \left (c x^{2} + b\right )}{2 \, b^{2}} + \frac {A \log \left (x^{2}\right )}{2 \, b^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.16, size = 47, normalized size = 0.92 \[ \frac {A\,\ln \relax (x)}{b^2}-\frac {A\,\ln \left (c\,x^2+b\right )}{2\,b^2}+\frac {A\,c-B\,b}{2\,b\,c\,\left (c\,x^2+b\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.44, size = 46, normalized size = 0.90 \[ \frac {A \log {\relax (x )}}{b^{2}} - \frac {A \log {\left (\frac {b}{c} + x^{2} \right )}}{2 b^{2}} + \frac {A c - B b}{2 b^{2} c + 2 b c^{2} x^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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