Optimal. Leaf size=46 \[ -\frac {x^2}{250}+\frac {2}{625 \left (2-5 x^2\right )^2}-\frac {6}{625 \left (2-5 x^2\right )}-\frac {3}{625} \log \left (2-5 x^2\right ) \]
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Rubi [A]
time = 0.02, antiderivative size = 46, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {272, 45}
\begin {gather*} -\frac {x^2}{250}-\frac {6}{625 \left (2-5 x^2\right )}+\frac {2}{625 \left (2-5 x^2\right )^2}-\frac {3}{625} \log \left (2-5 x^2\right ) \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 272
Rubi steps
\begin {align*} \int \frac {x^7}{\left (2-5 x^2\right )^3} \, dx &=\frac {1}{2} \text {Subst}\left (\int \frac {x^3}{(2-5 x)^3} \, dx,x,x^2\right )\\ &=\frac {1}{2} \text {Subst}\left (\int \left (-\frac {1}{125}-\frac {8}{125 (-2+5 x)^3}-\frac {12}{125 (-2+5 x)^2}-\frac {6}{125 (-2+5 x)}\right ) \, dx,x,x^2\right )\\ &=-\frac {x^2}{250}+\frac {2}{625 \left (2-5 x^2\right )^2}-\frac {6}{625 \left (2-5 x^2\right )}-\frac {3}{625} \log \left (2-5 x^2\right )\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 44, normalized size = 0.96 \begin {gather*} -\frac {12-150 x^4+125 x^6+6 \left (2-5 x^2\right )^2 \log \left (-2+5 x^2\right )}{1250 \left (2-5 x^2\right )^2} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.05, size = 39, normalized size = 0.85
method | result | size |
risch | \(-\frac {x^{2}}{250}+\frac {\frac {6 x^{2}}{125}-\frac {2}{125}}{\left (5 x^{2}-2\right )^{2}}-\frac {3 \ln \left (5 x^{2}-2\right )}{625}\) | \(35\) |
norman | \(\frac {-\frac {6}{125} x^{2}+\frac {9}{50} x^{4}-\frac {1}{10} x^{6}}{\left (5 x^{2}-2\right )^{2}}-\frac {3 \ln \left (5 x^{2}-2\right )}{625}\) | \(38\) |
meijerg | \(-\frac {x^{2} \left (25 x^{4}-45 x^{2}+12\right )}{1000 \left (1-\frac {5 x^{2}}{2}\right )^{2}}-\frac {3 \ln \left (1-\frac {5 x^{2}}{2}\right )}{625}\) | \(38\) |
default | \(-\frac {x^{2}}{250}+\frac {2}{625 \left (5 x^{2}-2\right )^{2}}-\frac {3 \ln \left (5 x^{2}-2\right )}{625}+\frac {6}{625 \left (5 x^{2}-2\right )}\) | \(39\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 1.69, size = 39, normalized size = 0.85 \begin {gather*} -\frac {1}{250} \, x^{2} + \frac {2 \, {\left (3 \, x^{2} - 1\right )}}{125 \, {\left (25 \, x^{4} - 20 \, x^{2} + 4\right )}} - \frac {3}{625} \, \log \left (5 \, x^{2} - 2\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.44, size = 55, normalized size = 1.20 \begin {gather*} -\frac {125 \, x^{6} - 100 \, x^{4} - 40 \, x^{2} + 6 \, {\left (25 \, x^{4} - 20 \, x^{2} + 4\right )} \log \left (5 \, x^{2} - 2\right ) + 20}{1250 \, {\left (25 \, x^{4} - 20 \, x^{2} + 4\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.04, size = 36, normalized size = 0.78 \begin {gather*} - \frac {x^{2}}{250} - \frac {2 - 6 x^{2}}{3125 x^{4} - 2500 x^{2} + 500} - \frac {3 \log {\left (5 x^{2} - 2 \right )}}{625} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.49, size = 40, normalized size = 0.87 \begin {gather*} -\frac {1}{250} \, x^{2} + \frac {225 \, x^{4} - 120 \, x^{2} + 16}{1250 \, {\left (5 \, x^{2} - 2\right )}^{2}} - \frac {3}{625} \, \log \left ({\left | 5 \, x^{2} - 2 \right |}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.19, size = 34, normalized size = 0.74 \begin {gather*} \frac {\frac {6\,x^2}{3125}-\frac {2}{3125}}{x^4-\frac {4\,x^2}{5}+\frac {4}{25}}-\frac {3\,\ln \left (x^2-\frac {2}{5}\right )}{625}-\frac {x^2}{250} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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