Integrand size = 13, antiderivative size = 45 \[ \int \sqrt {x} (a+b x)^n \, dx=\frac {2}{3} x^{3/2} (a+b x)^n \left (1+\frac {b x}{a}\right )^{-n} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-n,\frac {5}{2},-\frac {b x}{a}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {68, 66} \[ \int \sqrt {x} (a+b x)^n \, dx=\frac {2}{3} x^{3/2} (a+b x)^n \left (\frac {b x}{a}+1\right )^{-n} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-n,\frac {5}{2},-\frac {b x}{a}\right ) \]
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Rule 66
Rule 68
Rubi steps \begin{align*} \text {integral}& = \left ((a+b x)^n \left (1+\frac {b x}{a}\right )^{-n}\right ) \int \sqrt {x} \left (1+\frac {b x}{a}\right )^n \, dx \\ & = \frac {2}{3} x^{3/2} (a+b x)^n \left (1+\frac {b x}{a}\right )^{-n} \, _2F_1\left (\frac {3}{2},-n;\frac {5}{2};-\frac {b x}{a}\right ) \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00 \[ \int \sqrt {x} (a+b x)^n \, dx=\frac {2}{3} x^{3/2} (a+b x)^n \left (1+\frac {b x}{a}\right )^{-n} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-n,\frac {5}{2},-\frac {b x}{a}\right ) \]
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\[\int \sqrt {x}\, \left (b x +a \right )^{n}d x\]
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\[ \int \sqrt {x} (a+b x)^n \, dx=\int { {\left (b x + a\right )}^{n} \sqrt {x} \,d x } \]
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Result contains complex when optimal does not.
Time = 5.83 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.60 \[ \int \sqrt {x} (a+b x)^n \, dx=\frac {2 a^{n} x^{\frac {3}{2}} {{}_{2}F_{1}\left (\begin {matrix} \frac {3}{2}, - n \\ \frac {5}{2} \end {matrix}\middle | {\frac {b x e^{i \pi }}{a}} \right )}}{3} \]
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\[ \int \sqrt {x} (a+b x)^n \, dx=\int { {\left (b x + a\right )}^{n} \sqrt {x} \,d x } \]
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\[ \int \sqrt {x} (a+b x)^n \, dx=\int { {\left (b x + a\right )}^{n} \sqrt {x} \,d x } \]
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Timed out. \[ \int \sqrt {x} (a+b x)^n \, dx=\int \sqrt {x}\,{\left (a+b\,x\right )}^n \,d x \]
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