Integrand size = 20, antiderivative size = 66 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {a^2}{8 c^2 x^7 \sqrt {c x^2}}-\frac {2 a b}{7 c^2 x^6 \sqrt {c x^2}}-\frac {b^2}{6 c^2 x^5 \sqrt {c x^2}} \]
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Time = 0.01 (sec) , antiderivative size = 66, 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} \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {a^2}{8 c^2 x^7 \sqrt {c x^2}}-\frac {2 a b}{7 c^2 x^6 \sqrt {c x^2}}-\frac {b^2}{6 c^2 x^5 \sqrt {c x^2}} \]
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Rule 15
Rule 45
Rubi steps \begin{align*} \text {integral}& = \frac {x \int \frac {(a+b x)^2}{x^9} \, dx}{c^2 \sqrt {c x^2}} \\ & = \frac {x \int \left (\frac {a^2}{x^9}+\frac {2 a b}{x^8}+\frac {b^2}{x^7}\right ) \, dx}{c^2 \sqrt {c x^2}} \\ & = -\frac {a^2}{8 c^2 x^7 \sqrt {c x^2}}-\frac {2 a b}{7 c^2 x^6 \sqrt {c x^2}}-\frac {b^2}{6 c^2 x^5 \sqrt {c x^2}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.53 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=\frac {-21 a^2-48 a b x-28 b^2 x^2}{168 x^3 \left (c x^2\right )^{5/2}} \]
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Time = 0.13 (sec) , antiderivative size = 32, normalized size of antiderivative = 0.48
method | result | size |
gosper | \(-\frac {28 b^{2} x^{2}+48 a b x +21 a^{2}}{168 x^{3} \left (c \,x^{2}\right )^{\frac {5}{2}}}\) | \(32\) |
default | \(-\frac {28 b^{2} x^{2}+48 a b x +21 a^{2}}{168 x^{3} \left (c \,x^{2}\right )^{\frac {5}{2}}}\) | \(32\) |
risch | \(\frac {-\frac {1}{6} b^{2} x^{2}-\frac {2}{7} a b x -\frac {1}{8} a^{2}}{c^{2} x^{7} \sqrt {c \,x^{2}}}\) | \(34\) |
trager | \(\frac {\left (-1+x \right ) \left (21 a^{2} x^{7}+48 a b \,x^{7}+28 b^{2} x^{7}+21 a^{2} x^{6}+48 a b \,x^{6}+28 b^{2} x^{6}+21 a^{2} x^{5}+48 a b \,x^{5}+28 b^{2} x^{5}+21 a^{2} x^{4}+48 a b \,x^{4}+28 b^{2} x^{4}+21 a^{2} x^{3}+48 a b \,x^{3}+28 b^{2} x^{3}+21 a^{2} x^{2}+48 a b \,x^{2}+28 b^{2} x^{2}+21 a^{2} x +48 a b x +21 a^{2}\right ) \sqrt {c \,x^{2}}}{168 c^{3} x^{9}}\) | \(174\) |
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Time = 0.22 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.52 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {{\left (28 \, b^{2} x^{2} + 48 \, a b x + 21 \, a^{2}\right )} \sqrt {c x^{2}}}{168 \, c^{3} x^{9}} \]
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Time = 0.91 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.77 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=- \frac {a^{2}}{8 x^{3} \left (c x^{2}\right )^{\frac {5}{2}}} - \frac {2 a b}{7 x^{2} \left (c x^{2}\right )^{\frac {5}{2}}} - \frac {b^{2}}{6 x \left (c x^{2}\right )^{\frac {5}{2}}} \]
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Time = 0.22 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.50 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {b^{2}}{6 \, c^{\frac {5}{2}} x^{6}} - \frac {2 \, a b}{7 \, c^{\frac {5}{2}} x^{7}} - \frac {a^{2}}{8 \, c^{\frac {5}{2}} x^{8}} \]
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Time = 0.41 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.47 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {28 \, b^{2} x^{2} + 48 \, a b x + 21 \, a^{2}}{168 \, c^{\frac {5}{2}} x^{8} \mathrm {sgn}\left (x\right )} \]
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Time = 0.20 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.64 \[ \int \frac {(a+b x)^2}{x^4 \left (c x^2\right )^{5/2}} \, dx=-\frac {21\,a^2\,\sqrt {x^2}+28\,b^2\,x^2\,\sqrt {x^2}+48\,a\,b\,x\,\sqrt {x^2}}{168\,c^{5/2}\,x^9} \]
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