Optimal. Leaf size=109 \[ -\frac{5 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{128 a^{7/2} b^{3/2}}-\frac{5 x}{128 a^3 b \left (a-b x^2\right )}-\frac{5 x}{192 a^2 b \left (a-b x^2\right )^2}-\frac{x}{48 a b \left (a-b x^2\right )^3}+\frac{x}{8 b \left (a-b x^2\right )^4} \]
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Rubi [A] time = 0.0368752, antiderivative size = 109, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 3, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.214, Rules used = {288, 199, 208} \[ -\frac{5 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{128 a^{7/2} b^{3/2}}-\frac{5 x}{128 a^3 b \left (a-b x^2\right )}-\frac{5 x}{192 a^2 b \left (a-b x^2\right )^2}-\frac{x}{48 a b \left (a-b x^2\right )^3}+\frac{x}{8 b \left (a-b x^2\right )^4} \]
Antiderivative was successfully verified.
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Rule 288
Rule 199
Rule 208
Rubi steps
\begin{align*} \int \frac{x^2}{\left (a-b x^2\right )^5} \, dx &=\frac{x}{8 b \left (a-b x^2\right )^4}-\frac{\int \frac{1}{\left (a-b x^2\right )^4} \, dx}{8 b}\\ &=\frac{x}{8 b \left (a-b x^2\right )^4}-\frac{x}{48 a b \left (a-b x^2\right )^3}-\frac{5 \int \frac{1}{\left (a-b x^2\right )^3} \, dx}{48 a b}\\ &=\frac{x}{8 b \left (a-b x^2\right )^4}-\frac{x}{48 a b \left (a-b x^2\right )^3}-\frac{5 x}{192 a^2 b \left (a-b x^2\right )^2}-\frac{5 \int \frac{1}{\left (a-b x^2\right )^2} \, dx}{64 a^2 b}\\ &=\frac{x}{8 b \left (a-b x^2\right )^4}-\frac{x}{48 a b \left (a-b x^2\right )^3}-\frac{5 x}{192 a^2 b \left (a-b x^2\right )^2}-\frac{5 x}{128 a^3 b \left (a-b x^2\right )}-\frac{5 \int \frac{1}{a-b x^2} \, dx}{128 a^3 b}\\ &=\frac{x}{8 b \left (a-b x^2\right )^4}-\frac{x}{48 a b \left (a-b x^2\right )^3}-\frac{5 x}{192 a^2 b \left (a-b x^2\right )^2}-\frac{5 x}{128 a^3 b \left (a-b x^2\right )}-\frac{5 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{128 a^{7/2} b^{3/2}}\\ \end{align*}
Mathematica [A] time = 0.0477683, size = 81, normalized size = 0.74 \[ \frac{73 a^2 b x^3+15 a^3 x-55 a b^2 x^5+15 b^3 x^7}{384 a^3 b \left (a-b x^2\right )^4}-\frac{5 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{128 a^{7/2} b^{3/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.009, size = 72, normalized size = 0.7 \begin{align*} -{\frac{1}{ \left ( b{x}^{2}-a \right ) ^{4}} \left ( -{\frac{5\,{b}^{2}{x}^{7}}{128\,{a}^{3}}}+{\frac{55\,b{x}^{5}}{384\,{a}^{2}}}-{\frac{73\,{x}^{3}}{384\,a}}-{\frac{5\,x}{128\,b}} \right ) }-{\frac{5}{128\,{a}^{3}b}{\it Artanh} \left ({bx{\frac{1}{\sqrt{ab}}}} \right ){\frac{1}{\sqrt{ab}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.28953, size = 684, normalized size = 6.28 \begin{align*} \left [\frac{30 \, a b^{4} x^{7} - 110 \, a^{2} b^{3} x^{5} + 146 \, a^{3} b^{2} x^{3} + 30 \, a^{4} b x + 15 \,{\left (b^{4} x^{8} - 4 \, a b^{3} x^{6} + 6 \, a^{2} b^{2} x^{4} - 4 \, a^{3} b x^{2} + a^{4}\right )} \sqrt{a b} \log \left (\frac{b x^{2} - 2 \, \sqrt{a b} x + a}{b x^{2} - a}\right )}{768 \,{\left (a^{4} b^{6} x^{8} - 4 \, a^{5} b^{5} x^{6} + 6 \, a^{6} b^{4} x^{4} - 4 \, a^{7} b^{3} x^{2} + a^{8} b^{2}\right )}}, \frac{15 \, a b^{4} x^{7} - 55 \, a^{2} b^{3} x^{5} + 73 \, a^{3} b^{2} x^{3} + 15 \, a^{4} b x + 15 \,{\left (b^{4} x^{8} - 4 \, a b^{3} x^{6} + 6 \, a^{2} b^{2} x^{4} - 4 \, a^{3} b x^{2} + a^{4}\right )} \sqrt{-a b} \arctan \left (\frac{\sqrt{-a b} x}{a}\right )}{384 \,{\left (a^{4} b^{6} x^{8} - 4 \, a^{5} b^{5} x^{6} + 6 \, a^{6} b^{4} x^{4} - 4 \, a^{7} b^{3} x^{2} + a^{8} b^{2}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.851353, size = 160, normalized size = 1.47 \begin{align*} \frac{5 \sqrt{\frac{1}{a^{7} b^{3}}} \log{\left (- a^{4} b \sqrt{\frac{1}{a^{7} b^{3}}} + x \right )}}{256} - \frac{5 \sqrt{\frac{1}{a^{7} b^{3}}} \log{\left (a^{4} b \sqrt{\frac{1}{a^{7} b^{3}}} + x \right )}}{256} + \frac{15 a^{3} x + 73 a^{2} b x^{3} - 55 a b^{2} x^{5} + 15 b^{3} x^{7}}{384 a^{7} b - 1536 a^{6} b^{2} x^{2} + 2304 a^{5} b^{3} x^{4} - 1536 a^{4} b^{4} x^{6} + 384 a^{3} b^{5} x^{8}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 2.57477, size = 104, normalized size = 0.95 \begin{align*} \frac{5 \, \arctan \left (\frac{b x}{\sqrt{-a b}}\right )}{128 \, \sqrt{-a b} a^{3} b} + \frac{15 \, b^{3} x^{7} - 55 \, a b^{2} x^{5} + 73 \, a^{2} b x^{3} + 15 \, a^{3} x}{384 \,{\left (b x^{2} - a\right )}^{4} a^{3} b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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