Integrand size = 17, antiderivative size = 39 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {b^3}{7 x^7}-\frac {3 b^2 c}{5 x^5}-\frac {b c^2}{x^3}-\frac {c^3}{x} \]
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Time = 0.01 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {1598, 276} \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {b^3}{7 x^7}-\frac {3 b^2 c}{5 x^5}-\frac {b c^2}{x^3}-\frac {c^3}{x} \]
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Rule 276
Rule 1598
Rubi steps \begin{align*} \text {integral}& = \int \frac {\left (b+c x^2\right )^3}{x^8} \, dx \\ & = \int \left (\frac {b^3}{x^8}+\frac {3 b^2 c}{x^6}+\frac {3 b c^2}{x^4}+\frac {c^3}{x^2}\right ) \, dx \\ & = -\frac {b^3}{7 x^7}-\frac {3 b^2 c}{5 x^5}-\frac {b c^2}{x^3}-\frac {c^3}{x} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {b^3}{7 x^7}-\frac {3 b^2 c}{5 x^5}-\frac {b c^2}{x^3}-\frac {c^3}{x} \]
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Time = 0.04 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.92
method | result | size |
default | \(-\frac {b^{3}}{7 x^{7}}-\frac {3 b^{2} c}{5 x^{5}}-\frac {b \,c^{2}}{x^{3}}-\frac {c^{3}}{x}\) | \(36\) |
risch | \(\frac {-c^{3} x^{6}-b \,c^{2} x^{4}-\frac {3}{5} b^{2} c \,x^{2}-\frac {1}{7} b^{3}}{x^{7}}\) | \(37\) |
gosper | \(-\frac {35 c^{3} x^{6}+35 b \,c^{2} x^{4}+21 b^{2} c \,x^{2}+5 b^{3}}{35 x^{7}}\) | \(38\) |
parallelrisch | \(\frac {-35 c^{3} x^{6}-35 b \,c^{2} x^{4}-21 b^{2} c \,x^{2}-5 b^{3}}{35 x^{7}}\) | \(38\) |
norman | \(\frac {-\frac {1}{7} b^{3} x^{6}-c^{3} x^{12}-b \,c^{2} x^{10}-\frac {3}{5} b^{2} c \,x^{8}}{x^{13}}\) | \(40\) |
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Time = 0.28 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.95 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {35 \, c^{3} x^{6} + 35 \, b c^{2} x^{4} + 21 \, b^{2} c x^{2} + 5 \, b^{3}}{35 \, x^{7}} \]
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Time = 0.12 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.00 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=\frac {- 5 b^{3} - 21 b^{2} c x^{2} - 35 b c^{2} x^{4} - 35 c^{3} x^{6}}{35 x^{7}} \]
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Time = 0.18 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.95 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {35 \, c^{3} x^{6} + 35 \, b c^{2} x^{4} + 21 \, b^{2} c x^{2} + 5 \, b^{3}}{35 \, x^{7}} \]
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Time = 0.32 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.95 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {35 \, c^{3} x^{6} + 35 \, b c^{2} x^{4} + 21 \, b^{2} c x^{2} + 5 \, b^{3}}{35 \, x^{7}} \]
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Time = 0.03 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.90 \[ \int \frac {\left (b x^2+c x^4\right )^3}{x^{14}} \, dx=-\frac {\frac {b^3}{7}+\frac {3\,b^2\,c\,x^2}{5}+b\,c^2\,x^4+c^3\,x^6}{x^7} \]
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