Integrand size = 26, antiderivative size = 137 \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=\frac {a^2 \left (a+b \sqrt [3]{x}\right )^5 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}}{2 b^3}-\frac {6 a \left (a+b \sqrt [3]{x}\right )^6 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}}{7 b^3}+\frac {3 \left (a+b \sqrt [3]{x}\right )^7 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}}{8 b^3} \]
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Time = 0.05 (sec) , antiderivative size = 137, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.115, Rules used = {1355, 660, 45} \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=\frac {3 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}} \left (a+b \sqrt [3]{x}\right )^7}{8 b^3}-\frac {6 a \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}} \left (a+b \sqrt [3]{x}\right )^6}{7 b^3}+\frac {a^2 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}} \left (a+b \sqrt [3]{x}\right )^5}{2 b^3} \]
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Rule 45
Rule 660
Rule 1355
Rubi steps \begin{align*} \text {integral}& = 3 \text {Subst}\left (\int x^2 \left (a^2+2 a b x+b^2 x^2\right )^{5/2} \, dx,x,\sqrt [3]{x}\right ) \\ & = \frac {\left (3 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}\right ) \text {Subst}\left (\int x^2 \left (a b+b^2 x\right )^5 \, dx,x,\sqrt [3]{x}\right )}{b^5 \left (a+b \sqrt [3]{x}\right )} \\ & = \frac {\left (3 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}\right ) \text {Subst}\left (\int \left (\frac {a^2 \left (a b+b^2 x\right )^5}{b^2}-\frac {2 a \left (a b+b^2 x\right )^6}{b^3}+\frac {\left (a b+b^2 x\right )^7}{b^4}\right ) \, dx,x,\sqrt [3]{x}\right )}{b^5 \left (a+b \sqrt [3]{x}\right )} \\ & = \frac {a^2 \left (a+b \sqrt [3]{x}\right )^5 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}}{2 b^3}-\frac {6 a \left (a+b \sqrt [3]{x}\right )^6 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}}{7 b^3}+\frac {3 \left (a+b \sqrt [3]{x}\right )^7 \sqrt {a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}}}{8 b^3} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 93, normalized size of antiderivative = 0.68 \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=\frac {\left (\left (a+b \sqrt [3]{x}\right )^2\right )^{5/2} \left (56 a^5 x+210 a^4 b x^{4/3}+336 a^3 b^2 x^{5/3}+280 a^2 b^3 x^2+120 a b^4 x^{7/3}+21 b^5 x^{8/3}\right )}{56 \left (a+b \sqrt [3]{x}\right )^5} \]
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Time = 0.02 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.55
method | result | size |
derivativedivides | \(\frac {{\left (\left (a +b \,x^{\frac {1}{3}}\right )^{2}\right )}^{\frac {5}{2}} x \left (21 b^{5} x^{\frac {5}{3}}+120 b^{4} a \,x^{\frac {4}{3}}+280 a^{2} b^{3} x +336 a^{3} b^{2} x^{\frac {2}{3}}+210 b \,a^{4} x^{\frac {1}{3}}+56 a^{5}\right )}{56 \left (a +b \,x^{\frac {1}{3}}\right )^{5}}\) | \(76\) |
default | \(\frac {\left (a^{2}+2 a b \,x^{\frac {1}{3}}+b^{2} x^{\frac {2}{3}}\right )^{\frac {5}{2}} \left (21 b^{5} x^{\frac {8}{3}}+120 b^{4} a \,x^{\frac {7}{3}}+336 a^{3} b^{2} x^{\frac {5}{3}}+210 b \,a^{4} x^{\frac {4}{3}}+280 a^{2} b^{3} x^{2}+56 a^{5} x \right )}{56 \left (a +b \,x^{\frac {1}{3}}\right )^{5}}\) | \(87\) |
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Time = 0.28 (sec) , antiderivative size = 61, normalized size of antiderivative = 0.45 \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=5 \, a^{2} b^{3} x^{2} + a^{5} x + \frac {3}{8} \, {\left (b^{5} x^{2} + 16 \, a^{3} b^{2} x\right )} x^{\frac {2}{3}} + \frac {15}{28} \, {\left (4 \, a b^{4} x^{2} + 7 \, a^{4} b x\right )} x^{\frac {1}{3}} \]
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Time = 1.43 (sec) , antiderivative size = 204, normalized size of antiderivative = 1.49 \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=3 \left (\begin {cases} \sqrt {a^{2} + 2 a b \sqrt [3]{x} + b^{2} x^{\frac {2}{3}}} \left (\frac {a^{7}}{168 b^{3}} - \frac {a^{6} \sqrt [3]{x}}{168 b^{2}} + \frac {a^{5} x^{\frac {2}{3}}}{168 b} + \frac {55 a^{4} x}{168} + \frac {155 a^{3} b x^{\frac {4}{3}}}{168} + \frac {181 a^{2} b^{2} x^{\frac {5}{3}}}{168} + \frac {33 a b^{3} x^{2}}{56} + \frac {b^{4} x^{\frac {7}{3}}}{8}\right ) & \text {for}\: b^{2} \neq 0 \\\frac {\frac {a^{4} \left (a^{2} + 2 a b \sqrt [3]{x}\right )^{\frac {7}{2}}}{7} - \frac {2 a^{2} \left (a^{2} + 2 a b \sqrt [3]{x}\right )^{\frac {9}{2}}}{9} + \frac {\left (a^{2} + 2 a b \sqrt [3]{x}\right )^{\frac {11}{2}}}{11}}{4 a^{3} b^{3}} & \text {for}\: a b \neq 0 \\\frac {x \left (a^{2}\right )^{\frac {5}{2}}}{3} & \text {otherwise} \end {cases}\right ) \]
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Time = 0.19 (sec) , antiderivative size = 114, normalized size of antiderivative = 0.83 \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=\frac {{\left (b^{2} x^{\frac {2}{3}} + 2 \, a b x^{\frac {1}{3}} + a^{2}\right )}^{\frac {5}{2}} a^{2} x^{\frac {1}{3}}}{2 \, b^{2}} + \frac {{\left (b^{2} x^{\frac {2}{3}} + 2 \, a b x^{\frac {1}{3}} + a^{2}\right )}^{\frac {5}{2}} a^{3}}{2 \, b^{3}} + \frac {3 \, {\left (b^{2} x^{\frac {2}{3}} + 2 \, a b x^{\frac {1}{3}} + a^{2}\right )}^{\frac {7}{2}} x^{\frac {1}{3}}}{8 \, b^{2}} - \frac {27 \, {\left (b^{2} x^{\frac {2}{3}} + 2 \, a b x^{\frac {1}{3}} + a^{2}\right )}^{\frac {7}{2}} a}{56 \, b^{3}} \]
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Time = 0.30 (sec) , antiderivative size = 102, normalized size of antiderivative = 0.74 \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=\frac {3}{8} \, b^{5} x^{\frac {8}{3}} \mathrm {sgn}\left (b x^{\frac {1}{3}} + a\right ) + \frac {15}{7} \, a b^{4} x^{\frac {7}{3}} \mathrm {sgn}\left (b x^{\frac {1}{3}} + a\right ) + 5 \, a^{2} b^{3} x^{2} \mathrm {sgn}\left (b x^{\frac {1}{3}} + a\right ) + 6 \, a^{3} b^{2} x^{\frac {5}{3}} \mathrm {sgn}\left (b x^{\frac {1}{3}} + a\right ) + \frac {15}{4} \, a^{4} b x^{\frac {4}{3}} \mathrm {sgn}\left (b x^{\frac {1}{3}} + a\right ) + a^{5} x \mathrm {sgn}\left (b x^{\frac {1}{3}} + a\right ) \]
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Timed out. \[ \int \left (a^2+2 a b \sqrt [3]{x}+b^2 x^{2/3}\right )^{5/2} \, dx=\int {\left (a^2+b^2\,x^{2/3}+2\,a\,b\,x^{1/3}\right )}^{5/2} \,d x \]
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