Integrand size = 18, antiderivative size = 54 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {a^2 x^4}{4}+\frac {1}{3} a b x^6+\frac {1}{8} \left (b^2+2 a c\right ) x^8+\frac {1}{5} b c x^{10}+\frac {c^2 x^{12}}{12} \]
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Time = 0.04 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {1599, 1128, 645} \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {a^2 x^4}{4}+\frac {1}{8} x^8 \left (2 a c+b^2\right )+\frac {1}{3} a b x^6+\frac {1}{5} b c x^{10}+\frac {c^2 x^{12}}{12} \]
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Rule 645
Rule 1128
Rule 1599
Rubi steps \begin{align*} \text {integral}& = \int x^3 \left (a+b x^2+c x^4\right )^2 \, dx \\ & = \frac {1}{2} \text {Subst}\left (\int x \left (a+b x+c x^2\right )^2 \, dx,x,x^2\right ) \\ & = \frac {1}{2} \text {Subst}\left (\int \left (a^2 x+2 a b x^2+\left (b^2+2 a c\right ) x^3+2 b c x^4+c^2 x^5\right ) \, dx,x,x^2\right ) \\ & = \frac {a^2 x^4}{4}+\frac {1}{3} a b x^6+\frac {1}{8} \left (b^2+2 a c\right ) x^8+\frac {1}{5} b c x^{10}+\frac {c^2 x^{12}}{12} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 48, normalized size of antiderivative = 0.89 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {1}{120} x^4 \left (30 a^2+40 a b x^2+15 \left (b^2+2 a c\right ) x^4+24 b c x^6+10 c^2 x^8\right ) \]
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Time = 0.09 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.83
method | result | size |
default | \(\frac {a^{2} x^{4}}{4}+\frac {a b \,x^{6}}{3}+\frac {\left (2 a c +b^{2}\right ) x^{8}}{8}+\frac {b c \,x^{10}}{5}+\frac {c^{2} x^{12}}{12}\) | \(45\) |
norman | \(\frac {c^{2} x^{12}}{12}+\frac {b c \,x^{10}}{5}+\left (\frac {a c}{4}+\frac {b^{2}}{8}\right ) x^{8}+\frac {a b \,x^{6}}{3}+\frac {a^{2} x^{4}}{4}\) | \(46\) |
risch | \(\frac {1}{4} a^{2} x^{4}+\frac {1}{3} a b \,x^{6}+\frac {1}{4} x^{8} a c +\frac {1}{8} b^{2} x^{8}+\frac {1}{5} b c \,x^{10}+\frac {1}{12} c^{2} x^{12}\) | \(47\) |
parallelrisch | \(\frac {1}{4} a^{2} x^{4}+\frac {1}{3} a b \,x^{6}+\frac {1}{4} x^{8} a c +\frac {1}{8} b^{2} x^{8}+\frac {1}{5} b c \,x^{10}+\frac {1}{12} c^{2} x^{12}\) | \(47\) |
gosper | \(\frac {x^{4} \left (10 c^{2} x^{8}+24 b c \,x^{6}+30 a c \,x^{4}+15 b^{2} x^{4}+40 a b \,x^{2}+30 a^{2}\right )}{120}\) | \(49\) |
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Time = 0.23 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.81 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {1}{12} \, c^{2} x^{12} + \frac {1}{5} \, b c x^{10} + \frac {1}{8} \, {\left (b^{2} + 2 \, a c\right )} x^{8} + \frac {1}{3} \, a b x^{6} + \frac {1}{4} \, a^{2} x^{4} \]
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Time = 0.02 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.85 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {a^{2} x^{4}}{4} + \frac {a b x^{6}}{3} + \frac {b c x^{10}}{5} + \frac {c^{2} x^{12}}{12} + x^{8} \left (\frac {a c}{4} + \frac {b^{2}}{8}\right ) \]
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Time = 0.18 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.81 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {1}{12} \, c^{2} x^{12} + \frac {1}{5} \, b c x^{10} + \frac {1}{8} \, {\left (b^{2} + 2 \, a c\right )} x^{8} + \frac {1}{3} \, a b x^{6} + \frac {1}{4} \, a^{2} x^{4} \]
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Time = 0.26 (sec) , antiderivative size = 46, normalized size of antiderivative = 0.85 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=\frac {1}{12} \, c^{2} x^{12} + \frac {1}{5} \, b c x^{10} + \frac {1}{8} \, b^{2} x^{8} + \frac {1}{4} \, a c x^{8} + \frac {1}{3} \, a b x^{6} + \frac {1}{4} \, a^{2} x^{4} \]
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Time = 0.01 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.83 \[ \int x \left (a x+b x^3+c x^5\right )^2 \, dx=x^8\,\left (\frac {b^2}{8}+\frac {a\,c}{4}\right )+\frac {a^2\,x^4}{4}+\frac {c^2\,x^{12}}{12}+\frac {a\,b\,x^6}{3}+\frac {b\,c\,x^{10}}{5} \]
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