Integrand size = 13, antiderivative size = 51 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3}{5} a^3 x^{5/3}+\frac {9}{8} a^2 b x^{8/3}+\frac {9}{11} a b^2 x^{11/3}+\frac {3}{14} b^3 x^{14/3} \]
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Time = 0.01 (sec) , antiderivative size = 51, 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 = {45} \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3}{5} a^3 x^{5/3}+\frac {9}{8} a^2 b x^{8/3}+\frac {9}{11} a b^2 x^{11/3}+\frac {3}{14} b^3 x^{14/3} \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (a^3 x^{2/3}+3 a^2 b x^{5/3}+3 a b^2 x^{8/3}+b^3 x^{11/3}\right ) \, dx \\ & = \frac {3}{5} a^3 x^{5/3}+\frac {9}{8} a^2 b x^{8/3}+\frac {9}{11} a b^2 x^{11/3}+\frac {3}{14} b^3 x^{14/3} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 39, normalized size of antiderivative = 0.76 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3 x^{5/3} \left (616 a^3+1155 a^2 b x+840 a b^2 x^2+220 b^3 x^3\right )}{3080} \]
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Time = 0.08 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.71
method | result | size |
gosper | \(\frac {3 x^{\frac {5}{3}} \left (220 b^{3} x^{3}+840 a \,b^{2} x^{2}+1155 a^{2} b x +616 a^{3}\right )}{3080}\) | \(36\) |
derivativedivides | \(\frac {3 a^{3} x^{\frac {5}{3}}}{5}+\frac {9 a^{2} b \,x^{\frac {8}{3}}}{8}+\frac {9 a \,b^{2} x^{\frac {11}{3}}}{11}+\frac {3 b^{3} x^{\frac {14}{3}}}{14}\) | \(36\) |
default | \(\frac {3 a^{3} x^{\frac {5}{3}}}{5}+\frac {9 a^{2} b \,x^{\frac {8}{3}}}{8}+\frac {9 a \,b^{2} x^{\frac {11}{3}}}{11}+\frac {3 b^{3} x^{\frac {14}{3}}}{14}\) | \(36\) |
trager | \(\frac {3 x^{\frac {5}{3}} \left (220 b^{3} x^{3}+840 a \,b^{2} x^{2}+1155 a^{2} b x +616 a^{3}\right )}{3080}\) | \(36\) |
risch | \(\frac {3 x^{\frac {5}{3}} \left (220 b^{3} x^{3}+840 a \,b^{2} x^{2}+1155 a^{2} b x +616 a^{3}\right )}{3080}\) | \(36\) |
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none
Time = 0.23 (sec) , antiderivative size = 38, normalized size of antiderivative = 0.75 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3}{3080} \, {\left (220 \, b^{3} x^{4} + 840 \, a b^{2} x^{3} + 1155 \, a^{2} b x^{2} + 616 \, a^{3} x\right )} x^{\frac {2}{3}} \]
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Time = 0.53 (sec) , antiderivative size = 49, normalized size of antiderivative = 0.96 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3 a^{3} x^{\frac {5}{3}}}{5} + \frac {9 a^{2} b x^{\frac {8}{3}}}{8} + \frac {9 a b^{2} x^{\frac {11}{3}}}{11} + \frac {3 b^{3} x^{\frac {14}{3}}}{14} \]
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none
Time = 0.22 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.69 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3}{14} \, b^{3} x^{\frac {14}{3}} + \frac {9}{11} \, a b^{2} x^{\frac {11}{3}} + \frac {9}{8} \, a^{2} b x^{\frac {8}{3}} + \frac {3}{5} \, a^{3} x^{\frac {5}{3}} \]
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none
Time = 0.28 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.69 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3}{14} \, b^{3} x^{\frac {14}{3}} + \frac {9}{11} \, a b^{2} x^{\frac {11}{3}} + \frac {9}{8} \, a^{2} b x^{\frac {8}{3}} + \frac {3}{5} \, a^{3} x^{\frac {5}{3}} \]
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Time = 0.04 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.69 \[ \int x^{2/3} (a+b x)^3 \, dx=\frac {3\,a^3\,x^{5/3}}{5}+\frac {3\,b^3\,x^{14/3}}{14}+\frac {9\,a^2\,b\,x^{8/3}}{8}+\frac {9\,a\,b^2\,x^{11/3}}{11} \]
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