Integrand size = 18, antiderivative size = 75 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=-\frac {(b d-a e) (B d-A e)}{3 e^3 (d+e x)^3}+\frac {2 b B d-A b e-a B e}{2 e^3 (d+e x)^2}-\frac {b B}{e^3 (d+e x)} \]
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Time = 0.04 (sec) , antiderivative size = 75, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.056, Rules used = {78} \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=\frac {-a B e-A b e+2 b B d}{2 e^3 (d+e x)^2}-\frac {(b d-a e) (B d-A e)}{3 e^3 (d+e x)^3}-\frac {b B}{e^3 (d+e x)} \]
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Rule 78
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {(-b d+a e) (-B d+A e)}{e^2 (d+e x)^4}+\frac {-2 b B d+A b e+a B e}{e^2 (d+e x)^3}+\frac {b B}{e^2 (d+e x)^2}\right ) \, dx \\ & = -\frac {(b d-a e) (B d-A e)}{3 e^3 (d+e x)^3}+\frac {2 b B d-A b e-a B e}{2 e^3 (d+e x)^2}-\frac {b B}{e^3 (d+e x)} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 63, normalized size of antiderivative = 0.84 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=-\frac {a e (2 A e+B (d+3 e x))+b \left (A e (d+3 e x)+2 B \left (d^2+3 d e x+3 e^2 x^2\right )\right )}{6 e^3 (d+e x)^3} \]
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Time = 2.01 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.93
method | result | size |
norman | \(\frac {-\frac {b B \,x^{2}}{e}-\frac {\left (A b e +B a e +2 B b d \right ) x}{2 e^{2}}-\frac {2 A a \,e^{2}+A b d e +B a d e +2 b B \,d^{2}}{6 e^{3}}}{\left (e x +d \right )^{3}}\) | \(70\) |
risch | \(\frac {-\frac {b B \,x^{2}}{e}-\frac {\left (A b e +B a e +2 B b d \right ) x}{2 e^{2}}-\frac {2 A a \,e^{2}+A b d e +B a d e +2 b B \,d^{2}}{6 e^{3}}}{\left (e x +d \right )^{3}}\) | \(70\) |
gosper | \(-\frac {6 b B \,x^{2} e^{2}+3 A x b \,e^{2}+3 B x a \,e^{2}+6 B x b d e +2 A a \,e^{2}+A b d e +B a d e +2 b B \,d^{2}}{6 \left (e x +d \right )^{3} e^{3}}\) | \(71\) |
parallelrisch | \(-\frac {6 b B \,x^{2} e^{2}+3 A x b \,e^{2}+3 B x a \,e^{2}+6 B x b d e +2 A a \,e^{2}+A b d e +B a d e +2 b B \,d^{2}}{6 \left (e x +d \right )^{3} e^{3}}\) | \(71\) |
default | \(-\frac {b B}{e^{3} \left (e x +d \right )}-\frac {A a \,e^{2}-A b d e -B a d e +b B \,d^{2}}{3 e^{3} \left (e x +d \right )^{3}}-\frac {A b e +B a e -2 B b d}{2 e^{3} \left (e x +d \right )^{2}}\) | \(79\) |
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Time = 0.22 (sec) , antiderivative size = 93, normalized size of antiderivative = 1.24 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=-\frac {6 \, B b e^{2} x^{2} + 2 \, B b d^{2} + 2 \, A a e^{2} + {\left (B a + A b\right )} d e + 3 \, {\left (2 \, B b d e + {\left (B a + A b\right )} e^{2}\right )} x}{6 \, {\left (e^{6} x^{3} + 3 \, d e^{5} x^{2} + 3 \, d^{2} e^{4} x + d^{3} e^{3}\right )}} \]
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Time = 0.73 (sec) , antiderivative size = 107, normalized size of antiderivative = 1.43 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=\frac {- 2 A a e^{2} - A b d e - B a d e - 2 B b d^{2} - 6 B b e^{2} x^{2} + x \left (- 3 A b e^{2} - 3 B a e^{2} - 6 B b d e\right )}{6 d^{3} e^{3} + 18 d^{2} e^{4} x + 18 d e^{5} x^{2} + 6 e^{6} x^{3}} \]
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Time = 0.29 (sec) , antiderivative size = 93, normalized size of antiderivative = 1.24 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=-\frac {6 \, B b e^{2} x^{2} + 2 \, B b d^{2} + 2 \, A a e^{2} + {\left (B a + A b\right )} d e + 3 \, {\left (2 \, B b d e + {\left (B a + A b\right )} e^{2}\right )} x}{6 \, {\left (e^{6} x^{3} + 3 \, d e^{5} x^{2} + 3 \, d^{2} e^{4} x + d^{3} e^{3}\right )}} \]
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Time = 0.28 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.93 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=-\frac {6 \, B b e^{2} x^{2} + 6 \, B b d e x + 3 \, B a e^{2} x + 3 \, A b e^{2} x + 2 \, B b d^{2} + B a d e + A b d e + 2 \, A a e^{2}}{6 \, {\left (e x + d\right )}^{3} e^{3}} \]
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Time = 1.16 (sec) , antiderivative size = 91, normalized size of antiderivative = 1.21 \[ \int \frac {(a+b x) (A+B x)}{(d+e x)^4} \, dx=-\frac {\frac {2\,A\,a\,e^2+2\,B\,b\,d^2+A\,b\,d\,e+B\,a\,d\,e}{6\,e^3}+\frac {x\,\left (A\,b\,e+B\,a\,e+2\,B\,b\,d\right )}{2\,e^2}+\frac {B\,b\,x^2}{e}}{d^3+3\,d^2\,e\,x+3\,d\,e^2\,x^2+e^3\,x^3} \]
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