Integrand size = 13, antiderivative size = 22 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {16 x^3}{3}-\frac {8 x^5}{5}+\frac {x^7}{7} \]
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Time = 0.00 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {276} \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {x^7}{7}-\frac {8 x^5}{5}+\frac {16 x^3}{3} \]
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Rule 276
Rubi steps \begin{align*} \text {integral}& = \int \left (16 x^2-8 x^4+x^6\right ) \, dx \\ & = \frac {16 x^3}{3}-\frac {8 x^5}{5}+\frac {x^7}{7} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.00 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {16 x^3}{3}-\frac {8 x^5}{5}+\frac {x^7}{7} \]
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Time = 0.82 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.77
method | result | size |
default | \(\frac {16}{3} x^{3}-\frac {8}{5} x^{5}+\frac {1}{7} x^{7}\) | \(17\) |
norman | \(\frac {16}{3} x^{3}-\frac {8}{5} x^{5}+\frac {1}{7} x^{7}\) | \(17\) |
risch | \(\frac {16}{3} x^{3}-\frac {8}{5} x^{5}+\frac {1}{7} x^{7}\) | \(17\) |
parallelrisch | \(\frac {16}{3} x^{3}-\frac {8}{5} x^{5}+\frac {1}{7} x^{7}\) | \(17\) |
gosper | \(\frac {x^{3} \left (15 x^{4}-168 x^{2}+560\right )}{105}\) | \(18\) |
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none
Time = 0.23 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.73 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {1}{7} \, x^{7} - \frac {8}{5} \, x^{5} + \frac {16}{3} \, x^{3} \]
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Time = 0.02 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.77 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {x^{7}}{7} - \frac {8 x^{5}}{5} + \frac {16 x^{3}}{3} \]
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none
Time = 0.19 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.73 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {1}{7} \, x^{7} - \frac {8}{5} \, x^{5} + \frac {16}{3} \, x^{3} \]
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none
Time = 0.28 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.73 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {1}{7} \, x^{7} - \frac {8}{5} \, x^{5} + \frac {16}{3} \, x^{3} \]
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Time = 0.02 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.77 \[ \int x^2 \left (4-x^2\right )^2 \, dx=\frac {x^3\,\left (15\,x^4-168\,x^2+560\right )}{105} \]
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