Integrand size = 26, antiderivative size = 79 \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\frac {a x^6 \sqrt {a^2+2 a b x^3+b^2 x^6}}{6 \left (a+b x^3\right )}+\frac {b x^9 \sqrt {a^2+2 a b x^3+b^2 x^6}}{9 \left (a+b x^3\right )} \]
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Time = 0.02 (sec) , antiderivative size = 79, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {1369, 14} \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\frac {a x^6 \sqrt {a^2+2 a b x^3+b^2 x^6}}{6 \left (a+b x^3\right )}+\frac {b x^9 \sqrt {a^2+2 a b x^3+b^2 x^6}}{9 \left (a+b x^3\right )} \]
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Rule 14
Rule 1369
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {a^2+2 a b x^3+b^2 x^6} \int x^5 \left (a b+b^2 x^3\right ) \, dx}{a b+b^2 x^3} \\ & = \frac {\sqrt {a^2+2 a b x^3+b^2 x^6} \int \left (a b x^5+b^2 x^8\right ) \, dx}{a b+b^2 x^3} \\ & = \frac {a x^6 \sqrt {a^2+2 a b x^3+b^2 x^6}}{6 \left (a+b x^3\right )}+\frac {b x^9 \sqrt {a^2+2 a b x^3+b^2 x^6}}{9 \left (a+b x^3\right )} \\ \end{align*}
Time = 1.02 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.49 \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\frac {\sqrt {\left (a+b x^3\right )^2} \left (3 a x^6+2 b x^9\right )}{18 \left (a+b x^3\right )} \]
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Result contains higher order function than in optimal. Order 9 vs. order 2.
Time = 0.19 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.39
method | result | size |
pseudoelliptic | \(-\frac {\operatorname {csgn}\left (b \,x^{3}+a \right ) \left (b \,x^{3}+a \right )^{2} \left (-2 b \,x^{3}+a \right )}{18 b^{2}}\) | \(31\) |
gosper | \(\frac {x^{6} \left (2 b \,x^{3}+3 a \right ) \sqrt {\left (b \,x^{3}+a \right )^{2}}}{18 b \,x^{3}+18 a}\) | \(36\) |
default | \(\frac {x^{6} \left (2 b \,x^{3}+3 a \right ) \sqrt {\left (b \,x^{3}+a \right )^{2}}}{18 b \,x^{3}+18 a}\) | \(36\) |
risch | \(\frac {a \,x^{6} \sqrt {\left (b \,x^{3}+a \right )^{2}}}{6 b \,x^{3}+6 a}+\frac {b \,x^{9} \sqrt {\left (b \,x^{3}+a \right )^{2}}}{9 b \,x^{3}+9 a}\) | \(54\) |
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none
Time = 0.29 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.16 \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\frac {1}{9} \, b x^{9} + \frac {1}{6} \, a x^{6} \]
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Timed out. \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\text {Timed out} \]
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none
Time = 0.22 (sec) , antiderivative size = 83, normalized size of antiderivative = 1.05 \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=-\frac {\sqrt {b^{2} x^{6} + 2 \, a b x^{3} + a^{2}} a x^{3}}{6 \, b} - \frac {\sqrt {b^{2} x^{6} + 2 \, a b x^{3} + a^{2}} a^{2}}{6 \, b^{2}} + \frac {{\left (b^{2} x^{6} + 2 \, a b x^{3} + a^{2}\right )}^{\frac {3}{2}}}{9 \, b^{2}} \]
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none
Time = 0.30 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.29 \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\frac {1}{18} \, {\left (2 \, b x^{9} + 3 \, a x^{6}\right )} \mathrm {sgn}\left (b x^{3} + a\right ) \]
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Time = 8.22 (sec) , antiderivative size = 59, normalized size of antiderivative = 0.75 \[ \int x^5 \sqrt {a^2+2 a b x^3+b^2 x^6} \, dx=\frac {\sqrt {a^2+2\,a\,b\,x^3+b^2\,x^6}\,\left (8\,b^2\,\left (a^2+b^2\,x^6\right )-12\,a^2\,b^2+4\,a\,b^3\,x^3\right )}{72\,b^4} \]
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