Integrand size = 20, antiderivative size = 57 \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {a^2 x^4}{3 \sqrt {c x^2}}+\frac {a b x^5}{2 \sqrt {c x^2}}+\frac {b^2 x^6}{5 \sqrt {c x^2}} \]
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Time = 0.01 (sec) , antiderivative size = 57, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {15, 45} \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {a^2 x^4}{3 \sqrt {c x^2}}+\frac {a b x^5}{2 \sqrt {c x^2}}+\frac {b^2 x^6}{5 \sqrt {c x^2}} \]
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Rule 15
Rule 45
Rubi steps \begin{align*} \text {integral}& = \frac {x \int x^2 (a+b x)^2 \, dx}{\sqrt {c x^2}} \\ & = \frac {x \int \left (a^2 x^2+2 a b x^3+b^2 x^4\right ) \, dx}{\sqrt {c x^2}} \\ & = \frac {a^2 x^4}{3 \sqrt {c x^2}}+\frac {a b x^5}{2 \sqrt {c x^2}}+\frac {b^2 x^6}{5 \sqrt {c x^2}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.61 \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {x^4 \left (10 a^2+15 a b x+6 b^2 x^2\right )}{30 \sqrt {c x^2}} \]
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Time = 0.12 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.56
method | result | size |
gosper | \(\frac {x^{4} \left (6 b^{2} x^{2}+15 a b x +10 a^{2}\right )}{30 \sqrt {c \,x^{2}}}\) | \(32\) |
default | \(\frac {x^{4} \left (6 b^{2} x^{2}+15 a b x +10 a^{2}\right )}{30 \sqrt {c \,x^{2}}}\) | \(32\) |
risch | \(\frac {a^{2} x^{4}}{3 \sqrt {c \,x^{2}}}+\frac {a b \,x^{5}}{2 \sqrt {c \,x^{2}}}+\frac {b^{2} x^{6}}{5 \sqrt {c \,x^{2}}}\) | \(46\) |
trager | \(\frac {\left (6 b^{2} x^{4}+15 a b \,x^{3}+6 b^{2} x^{3}+10 a^{2} x^{2}+15 a b \,x^{2}+6 b^{2} x^{2}+10 a^{2} x +15 a b x +6 b^{2} x +10 a^{2}+15 a b +6 b^{2}\right ) \left (-1+x \right ) \sqrt {c \,x^{2}}}{30 c x}\) | \(97\) |
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none
Time = 0.22 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.63 \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {{\left (6 \, b^{2} x^{4} + 15 \, a b x^{3} + 10 \, a^{2} x^{2}\right )} \sqrt {c x^{2}}}{30 \, c} \]
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Time = 0.64 (sec) , antiderivative size = 49, normalized size of antiderivative = 0.86 \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {a^{2} x^{4}}{3 \sqrt {c x^{2}}} + \frac {a b x^{5}}{2 \sqrt {c x^{2}}} + \frac {b^{2} x^{6}}{5 \sqrt {c x^{2}}} \]
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none
Time = 0.21 (sec) , antiderivative size = 54, normalized size of antiderivative = 0.95 \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {\sqrt {c x^{2}} b^{2} x^{4}}{5 \, c} + \frac {\sqrt {c x^{2}} a b x^{3}}{2 \, c} + \frac {\sqrt {c x^{2}} a^{2} x^{2}}{3 \, c} \]
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none
Time = 0.31 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.74 \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\frac {6 \, b^{2} \sqrt {c} x^{5} + 15 \, a b \sqrt {c} x^{4} + 10 \, a^{2} \sqrt {c} x^{3}}{30 \, c \mathrm {sgn}\left (x\right )} \]
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Timed out. \[ \int \frac {x^3 (a+b x)^2}{\sqrt {c x^2}} \, dx=\int \frac {x^3\,{\left (a+b\,x\right )}^2}{\sqrt {c\,x^2}} \,d x \]
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