Integrand size = 13, antiderivative size = 53 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {3 a^2 (a+b x)^{4/3}}{4 b^3}-\frac {6 a (a+b x)^{7/3}}{7 b^3}+\frac {3 (a+b x)^{10/3}}{10 b^3} \]
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Time = 0.01 (sec) , antiderivative size = 53, 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} \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {3 a^2 (a+b x)^{4/3}}{4 b^3}+\frac {3 (a+b x)^{10/3}}{10 b^3}-\frac {6 a (a+b x)^{7/3}}{7 b^3} \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a^2 \sqrt [3]{a+b x}}{b^2}-\frac {2 a (a+b x)^{4/3}}{b^2}+\frac {(a+b x)^{7/3}}{b^2}\right ) \, dx \\ & = \frac {3 a^2 (a+b x)^{4/3}}{4 b^3}-\frac {6 a (a+b x)^{7/3}}{7 b^3}+\frac {3 (a+b x)^{10/3}}{10 b^3} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.66 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {3 (a+b x)^{4/3} \left (9 a^2-12 a b x+14 b^2 x^2\right )}{140 b^3} \]
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Time = 0.12 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.60
method | result | size |
gosper | \(\frac {3 \left (b x +a \right )^{\frac {4}{3}} \left (14 b^{2} x^{2}-12 a b x +9 a^{2}\right )}{140 b^{3}}\) | \(32\) |
pseudoelliptic | \(\frac {3 \left (b x +a \right )^{\frac {4}{3}} \left (14 b^{2} x^{2}-12 a b x +9 a^{2}\right )}{140 b^{3}}\) | \(32\) |
derivativedivides | \(\frac {\frac {3 \left (b x +a \right )^{\frac {10}{3}}}{10}-\frac {6 a \left (b x +a \right )^{\frac {7}{3}}}{7}+\frac {3 a^{2} \left (b x +a \right )^{\frac {4}{3}}}{4}}{b^{3}}\) | \(38\) |
default | \(\frac {\frac {3 \left (b x +a \right )^{\frac {10}{3}}}{10}-\frac {6 a \left (b x +a \right )^{\frac {7}{3}}}{7}+\frac {3 a^{2} \left (b x +a \right )^{\frac {4}{3}}}{4}}{b^{3}}\) | \(38\) |
trager | \(\frac {3 \left (14 b^{3} x^{3}+2 a \,b^{2} x^{2}-3 a^{2} b x +9 a^{3}\right ) \left (b x +a \right )^{\frac {1}{3}}}{140 b^{3}}\) | \(43\) |
risch | \(\frac {3 \left (14 b^{3} x^{3}+2 a \,b^{2} x^{2}-3 a^{2} b x +9 a^{3}\right ) \left (b x +a \right )^{\frac {1}{3}}}{140 b^{3}}\) | \(43\) |
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Time = 0.22 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.79 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {3 \, {\left (14 \, b^{3} x^{3} + 2 \, a b^{2} x^{2} - 3 \, a^{2} b x + 9 \, a^{3}\right )} {\left (b x + a\right )}^{\frac {1}{3}}}{140 \, b^{3}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 666 vs. \(2 (49) = 98\).
Time = 1.33 (sec) , antiderivative size = 666, normalized size of antiderivative = 12.57 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {27 a^{\frac {34}{3}} \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} - \frac {27 a^{\frac {34}{3}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} + \frac {72 a^{\frac {31}{3}} b x \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} - \frac {81 a^{\frac {31}{3}} b x}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} + \frac {60 a^{\frac {28}{3}} b^{2} x^{2} \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} - \frac {81 a^{\frac {28}{3}} b^{2} x^{2}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} + \frac {60 a^{\frac {25}{3}} b^{3} x^{3} \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} - \frac {27 a^{\frac {25}{3}} b^{3} x^{3}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} + \frac {135 a^{\frac {22}{3}} b^{4} x^{4} \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} + \frac {132 a^{\frac {19}{3}} b^{5} x^{5} \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} + \frac {42 a^{\frac {16}{3}} b^{6} x^{6} \sqrt [3]{1 + \frac {b x}{a}}}{140 a^{8} b^{3} + 420 a^{7} b^{4} x + 420 a^{6} b^{5} x^{2} + 140 a^{5} b^{6} x^{3}} \]
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Time = 0.21 (sec) , antiderivative size = 41, normalized size of antiderivative = 0.77 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {3 \, {\left (b x + a\right )}^{\frac {10}{3}}}{10 \, b^{3}} - \frac {6 \, {\left (b x + a\right )}^{\frac {7}{3}} a}{7 \, b^{3}} + \frac {3 \, {\left (b x + a\right )}^{\frac {4}{3}} a^{2}}{4 \, b^{3}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 92 vs. \(2 (41) = 82\).
Time = 0.30 (sec) , antiderivative size = 92, normalized size of antiderivative = 1.74 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {3 \, {\left (\frac {10 \, {\left (2 \, {\left (b x + a\right )}^{\frac {7}{3}} - 7 \, {\left (b x + a\right )}^{\frac {4}{3}} a + 14 \, {\left (b x + a\right )}^{\frac {1}{3}} a^{2}\right )} a}{b^{2}} + \frac {14 \, {\left (b x + a\right )}^{\frac {10}{3}} - 60 \, {\left (b x + a\right )}^{\frac {7}{3}} a + 105 \, {\left (b x + a\right )}^{\frac {4}{3}} a^{2} - 140 \, {\left (b x + a\right )}^{\frac {1}{3}} a^{3}}{b^{2}}\right )}}{140 \, b} \]
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Time = 0.05 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.70 \[ \int x^2 \sqrt [3]{a+b x} \, dx=\frac {42\,{\left (a+b\,x\right )}^{10/3}-120\,a\,{\left (a+b\,x\right )}^{7/3}+105\,a^2\,{\left (a+b\,x\right )}^{4/3}}{140\,b^3} \]
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