Integrand size = 18, antiderivative size = 35 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {a x^3}{2 \sqrt {c x^2}}+\frac {b x^4}{3 \sqrt {c x^2}} \]
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Time = 0.01 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {15, 45} \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {a x^3}{2 \sqrt {c x^2}}+\frac {b x^4}{3 \sqrt {c x^2}} \]
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Rule 15
Rule 45
Rubi steps \begin{align*} \text {integral}& = \frac {x \int x (a+b x) \, dx}{\sqrt {c x^2}} \\ & = \frac {x \int \left (a x+b x^2\right ) \, dx}{\sqrt {c x^2}} \\ & = \frac {a x^3}{2 \sqrt {c x^2}}+\frac {b x^4}{3 \sqrt {c x^2}} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.71 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {x \sqrt {c x^2} (3 a+2 b x)}{6 c} \]
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Time = 0.03 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.60
method | result | size |
gosper | \(\frac {x^{3} \left (2 b x +3 a \right )}{6 \sqrt {c \,x^{2}}}\) | \(21\) |
default | \(\frac {x^{3} \left (2 b x +3 a \right )}{6 \sqrt {c \,x^{2}}}\) | \(21\) |
risch | \(\frac {a \,x^{3}}{2 \sqrt {c \,x^{2}}}+\frac {b \,x^{4}}{3 \sqrt {c \,x^{2}}}\) | \(28\) |
trager | \(\frac {\left (2 b \,x^{2}+3 a x +2 b x +3 a +2 b \right ) \left (-1+x \right ) \sqrt {c \,x^{2}}}{6 c x}\) | \(40\) |
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none
Time = 0.23 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.66 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {{\left (2 \, b x^{2} + 3 \, a x\right )} \sqrt {c x^{2}}}{6 \, c} \]
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Time = 0.23 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.83 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {a x^{3}}{2 \sqrt {c x^{2}}} + \frac {b x^{4}}{3 \sqrt {c x^{2}}} \]
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none
Time = 0.21 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.74 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {\sqrt {c x^{2}} b x^{2}}{3 \, c} + \frac {a x^{2}}{2 \, \sqrt {c}} \]
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none
Time = 0.30 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.63 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {2 \, b x^{3} + 3 \, a x^{2}}{6 \, \sqrt {c} \mathrm {sgn}\left (x\right )} \]
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Time = 0.28 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.66 \[ \int \frac {x^2 (a+b x)}{\sqrt {c x^2}} \, dx=\frac {2\,b\,\sqrt {x^6}+3\,a\,x\,\sqrt {x^2}}{6\,\sqrt {c}} \]
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