Integrand size = 15, antiderivative size = 47 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=\frac {a^2 x^{1+m}}{1+m}+\frac {4 a b x^{\frac {3}{2}+m}}{3+2 m}+\frac {b^2 x^{2+m}}{2+m} \]
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Time = 0.01 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.067, Rules used = {276} \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=\frac {a^2 x^{m+1}}{m+1}+\frac {4 a b x^{m+\frac {3}{2}}}{2 m+3}+\frac {b^2 x^{m+2}}{m+2} \]
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Rule 276
Rubi steps \begin{align*} \text {integral}& = \int \left (a^2 x^m+2 a b x^{\frac {1}{2}+m}+b^2 x^{1+m}\right ) \, dx \\ & = \frac {a^2 x^{1+m}}{1+m}+\frac {4 a b x^{\frac {3}{2}+m}}{3+2 m}+\frac {b^2 x^{2+m}}{2+m} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.89 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=x^{1+m} \left (\frac {a^2}{1+m}+\frac {4 a b \sqrt {x}}{3+2 m}+\frac {b^2 x}{2+m}\right ) \]
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\[\int x^{m} \left (a +b \sqrt {x}\right )^{2}d x\]
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Time = 0.28 (sec) , antiderivative size = 89, normalized size of antiderivative = 1.89 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=\frac {{\left ({\left (2 \, b^{2} m^{2} + 5 \, b^{2} m + 3 \, b^{2}\right )} x^{2} + 4 \, {\left (a b m^{2} + 3 \, a b m + 2 \, a b\right )} x^{\frac {3}{2}} + {\left (2 \, a^{2} m^{2} + 7 \, a^{2} m + 6 \, a^{2}\right )} x\right )} x^{m}}{2 \, m^{3} + 9 \, m^{2} + 13 \, m + 6} \]
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Time = 0.82 (sec) , antiderivative size = 78, normalized size of antiderivative = 1.66 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=a^{2} \left (\begin {cases} \frac {x^{m + 1}}{m + 1} & \text {for}\: m \neq -1 \\\log {\left (x \right )} & \text {otherwise} \end {cases}\right ) + 4 a b \left (\begin {cases} \frac {x^{\frac {3}{2}} x^{m}}{2 m + 3} & \text {for}\: m \neq - \frac {3}{2} \\x^{\frac {3}{2}} x^{m} \log {\left (\sqrt {x} \right )} & \text {otherwise} \end {cases}\right ) + b^{2} \left (\begin {cases} \frac {x^{2} x^{m}}{m + 2} & \text {for}\: m \neq -2 \\x^{2} x^{m} \log {\left (x \right )} & \text {otherwise} \end {cases}\right ) \]
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Time = 0.21 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.96 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=\frac {b^{2} x^{m + 2}}{m + 2} + \frac {4 \, a b x^{m + \frac {3}{2}}}{2 \, m + 3} + \frac {a^{2} x^{m + 1}}{m + 1} \]
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Time = 0.28 (sec) , antiderivative size = 58, normalized size of antiderivative = 1.23 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=\frac {b^{2} x^{2} \sqrt {x}^{2 \, m}}{m + 2} + \frac {4 \, a b x^{\frac {3}{2}} \sqrt {x}^{2 \, m}}{2 \, m + 3} + \frac {a^{2} x \sqrt {x}^{2 \, m}}{m + 1} \]
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Time = 5.75 (sec) , antiderivative size = 103, normalized size of antiderivative = 2.19 \[ \int \left (a+b \sqrt {x}\right )^2 x^m \, dx=x^m\,\left (\frac {b^2\,x^2\,\left (2\,m^2+5\,m+3\right )}{2\,m^3+9\,m^2+13\,m+6}+\frac {a^2\,x\,\left (2\,m^2+7\,m+6\right )}{2\,m^3+9\,m^2+13\,m+6}+\frac {4\,a\,b\,x^{3/2}\,\left (m^2+3\,m+2\right )}{2\,m^3+9\,m^2+13\,m+6}\right ) \]
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