Integrand size = 33, antiderivative size = 35 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=\frac {(a e+c d x)^2}{2 \left (c d^2-a e^2\right ) (d+e x)^2} \]
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Time = 0.01 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.061, Rules used = {24, 37} \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=\frac {(a e+c d x)^2}{2 (d+e x)^2 \left (c d^2-a e^2\right )} \]
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Rule 24
Rule 37
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {a e^3+c d e^2 x}{(d+e x)^3} \, dx}{e^2} \\ & = \frac {(a e+c d x)^2}{2 \left (c d^2-a e^2\right ) (d+e x)^2} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.83 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=-\frac {a e^2+c d (d+2 e x)}{2 e^2 (d+e x)^2} \]
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Time = 2.29 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.86
method | result | size |
gosper | \(-\frac {2 x c d e +e^{2} a +c \,d^{2}}{2 \left (e x +d \right )^{2} e^{2}}\) | \(30\) |
parallelrisch | \(\frac {-2 x c d e -e^{2} a -c \,d^{2}}{2 e^{2} \left (e x +d \right )^{2}}\) | \(32\) |
risch | \(\frac {-\frac {c d x}{e}-\frac {e^{2} a +c \,d^{2}}{2 e^{2}}}{\left (e x +d \right )^{2}}\) | \(34\) |
default | \(-\frac {c d}{e^{2} \left (e x +d \right )}-\frac {e^{2} a -c \,d^{2}}{2 e^{2} \left (e x +d \right )^{2}}\) | \(40\) |
norman | \(\frac {-\frac {d \left (a \,e^{3}+d^{2} e c \right )}{2 e^{3}}-\frac {\left (a \,e^{3}+3 d^{2} e c \right ) x}{2 e^{2}}-c d \,x^{2}}{\left (e x +d \right )^{3}}\) | \(54\) |
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Time = 0.44 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.23 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=-\frac {2 \, c d e x + c d^{2} + a e^{2}}{2 \, {\left (e^{4} x^{2} + 2 \, d e^{3} x + d^{2} e^{2}\right )}} \]
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Time = 0.15 (sec) , antiderivative size = 44, normalized size of antiderivative = 1.26 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=\frac {- a e^{2} - c d^{2} - 2 c d e x}{2 d^{2} e^{2} + 4 d e^{3} x + 2 e^{4} x^{2}} \]
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Time = 0.18 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.23 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=-\frac {2 \, c d e x + c d^{2} + a e^{2}}{2 \, {\left (e^{4} x^{2} + 2 \, d e^{3} x + d^{2} e^{2}\right )}} \]
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Time = 0.27 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.83 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=-\frac {2 \, c d e x + c d^{2} + a e^{2}}{2 \, {\left (e x + d\right )}^{2} e^{2}} \]
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Time = 10.02 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.86 \[ \int \frac {a d e+\left (c d^2+a e^2\right ) x+c d e x^2}{(d+e x)^4} \, dx=-\frac {\frac {a}{2}-\frac {c\,x^2}{2}}{d^2+2\,d\,e\,x+e^2\,x^2} \]
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