Integrand size = 28, antiderivative size = 13 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{e (d+e x)} \]
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Time = 0.00 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.107, Rules used = {24, 21, 32} \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{e (d+e x)} \]
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Rule 21
Rule 24
Rule 32
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {c d e^2+c e^3 x}{(d+e x)^3} \, dx}{e^2} \\ & = c \int \frac {1}{(d+e x)^2} \, dx \\ & = -\frac {c}{e (d+e x)} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{e (d+e x)} \]
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Time = 2.11 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.08
method | result | size |
gosper | \(-\frac {c}{e \left (e x +d \right )}\) | \(14\) |
default | \(-\frac {c}{e \left (e x +d \right )}\) | \(14\) |
risch | \(-\frac {c}{e \left (e x +d \right )}\) | \(14\) |
parallelrisch | \(-\frac {c}{e \left (e x +d \right )}\) | \(14\) |
norman | \(\frac {c d x +2 c e \,x^{2}+\frac {e^{2} c \,x^{3}}{d}}{\left (e x +d \right )^{3}}\) | \(32\) |
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none
Time = 0.26 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.08 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{e^{2} x + d e} \]
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Time = 0.06 (sec) , antiderivative size = 10, normalized size of antiderivative = 0.77 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=- \frac {c}{d e + e^{2} x} \]
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none
Time = 0.19 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.08 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{e^{2} x + d e} \]
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none
Time = 0.26 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{{\left (e x + d\right )} e} \]
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Time = 0.04 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00 \[ \int \frac {c d^2+2 c d e x+c e^2 x^2}{(d+e x)^4} \, dx=-\frac {c}{e\,\left (d+e\,x\right )} \]
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