Integrand size = 15, antiderivative size = 20 \[ \int (3-6 x)^m (2+4 x)^m \, dx=6^m x \operatorname {Hypergeometric2F1}\left (\frac {1}{2},-m,\frac {3}{2},4 x^2\right ) \]
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Time = 0.00 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {41, 251} \[ \int (3-6 x)^m (2+4 x)^m \, dx=6^m x \operatorname {Hypergeometric2F1}\left (\frac {1}{2},-m,\frac {3}{2},4 x^2\right ) \]
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Rule 41
Rule 251
Rubi steps \begin{align*} \text {integral}& = \int \left (6-24 x^2\right )^m \, dx \\ & = 6^m x \, _2F_1\left (\frac {1}{2},-m;\frac {3}{2};4 x^2\right ) \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00 \[ \int (3-6 x)^m (2+4 x)^m \, dx=6^m x \operatorname {Hypergeometric2F1}\left (\frac {1}{2},-m,\frac {3}{2},4 x^2\right ) \]
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\[\int \left (3-6 x \right )^{m} \left (2+4 x \right )^{m}d x\]
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\[ \int (3-6 x)^m (2+4 x)^m \, dx=\int { {\left (4 \, x + 2\right )}^{m} {\left (-6 \, x + 3\right )}^{m} \,d x } \]
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Result contains complex when optimal does not.
Time = 2.56 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.95 \[ \int (3-6 x)^m (2+4 x)^m \, dx=\frac {24^{m} \left (x + \frac {1}{2}\right )^{m + 1} \Gamma \left (m + 1\right ) {{}_{2}F_{1}\left (\begin {matrix} - m, m + 1 \\ m + 2 \end {matrix}\middle | {\left (x + \frac {1}{2}\right ) e^{2 i \pi }} \right )}}{\Gamma \left (m + 2\right )} \]
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\[ \int (3-6 x)^m (2+4 x)^m \, dx=\int { {\left (4 \, x + 2\right )}^{m} {\left (-6 \, x + 3\right )}^{m} \,d x } \]
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\[ \int (3-6 x)^m (2+4 x)^m \, dx=\int { {\left (4 \, x + 2\right )}^{m} {\left (-6 \, x + 3\right )}^{m} \,d x } \]
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Timed out. \[ \int (3-6 x)^m (2+4 x)^m \, dx=\int {\left (4\,x+2\right )}^m\,{\left (3-6\,x\right )}^m \,d x \]
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