Integrand size = 30, antiderivative size = 17 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4 c^2 e (d+e x)^4} \]
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Time = 0.00 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {27, 12, 32} \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4 c^2 e (d+e x)^4} \]
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Rule 12
Rule 27
Rule 32
Rubi steps \begin{align*} \text {integral}& = \int \frac {1}{c^2 (d+e x)^5} \, dx \\ & = \frac {\int \frac {1}{(d+e x)^5} \, dx}{c^2} \\ & = -\frac {1}{4 c^2 e (d+e x)^4} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4 c^2 e (d+e x)^4} \]
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Time = 2.58 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.94
method | result | size |
default | \(-\frac {1}{4 c^{2} e \left (e x +d \right )^{4}}\) | \(16\) |
norman | \(-\frac {1}{4 c^{2} e \left (e x +d \right )^{4}}\) | \(16\) |
gosper | \(-\frac {1}{4 e \,c^{2} \left (x^{2} e^{2}+2 d e x +d^{2}\right )^{2}}\) | \(27\) |
risch | \(-\frac {1}{4 e \left (e x +d \right )^{2} c^{2} \left (x^{2} e^{2}+2 d e x +d^{2}\right )}\) | \(34\) |
parallelrisch | \(-\frac {1}{4 e \left (e x +d \right )^{2} c^{2} \left (x^{2} e^{2}+2 d e x +d^{2}\right )}\) | \(34\) |
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Leaf count of result is larger than twice the leaf count of optimal. 61 vs. \(2 (15) = 30\).
Time = 0.56 (sec) , antiderivative size = 61, normalized size of antiderivative = 3.59 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4 \, {\left (c^{2} e^{5} x^{4} + 4 \, c^{2} d e^{4} x^{3} + 6 \, c^{2} d^{2} e^{3} x^{2} + 4 \, c^{2} d^{3} e^{2} x + c^{2} d^{4} e\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 66 vs. \(2 (15) = 30\).
Time = 0.15 (sec) , antiderivative size = 66, normalized size of antiderivative = 3.88 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=- \frac {1}{4 c^{2} d^{4} e + 16 c^{2} d^{3} e^{2} x + 24 c^{2} d^{2} e^{3} x^{2} + 16 c^{2} d e^{4} x^{3} + 4 c^{2} e^{5} x^{4}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 61 vs. \(2 (15) = 30\).
Time = 0.21 (sec) , antiderivative size = 61, normalized size of antiderivative = 3.59 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4 \, {\left (c^{2} e^{5} x^{4} + 4 \, c^{2} d e^{4} x^{3} + 6 \, c^{2} d^{2} e^{3} x^{2} + 4 \, c^{2} d^{3} e^{2} x + c^{2} d^{4} e\right )}} \]
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none
Time = 0.28 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4 \, {\left (e x + d\right )}^{4} c^{2} e} \]
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Time = 0.06 (sec) , antiderivative size = 63, normalized size of antiderivative = 3.71 \[ \int \frac {1}{(d+e x) \left (c d^2+2 c d e x+c e^2 x^2\right )^2} \, dx=-\frac {1}{4\,c^2\,d^4\,e+16\,c^2\,d^3\,e^2\,x+24\,c^2\,d^2\,e^3\,x^2+16\,c^2\,d\,e^4\,x^3+4\,c^2\,e^5\,x^4} \]
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