Integrand size = 27, antiderivative size = 32 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=-\frac {b c-a d}{b^2 (a+b x)}+\frac {d \log (a+b x)}{b^2} \]
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Time = 0.02 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.074, Rules used = {24, 45} \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=\frac {d \log (a+b x)}{b^2}-\frac {b c-a d}{b^2 (a+b x)} \]
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Rule 24
Rule 45
Rubi steps \begin{align*} \text {integral}& = \frac {\int \frac {b^2 c+b^2 d x}{(a+b x)^2} \, dx}{b^2} \\ & = \frac {\int \left (\frac {b (b c-a d)}{(a+b x)^2}+\frac {b d}{a+b x}\right ) \, dx}{b^2} \\ & = -\frac {b c-a d}{b^2 (a+b x)}+\frac {d \log (a+b x)}{b^2} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.97 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=\frac {-b c+a d}{b^2 (a+b x)}+\frac {d \log (a+b x)}{b^2} \]
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Time = 2.14 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.03
method | result | size |
default | \(\frac {d \ln \left (b x +a \right )}{b^{2}}-\frac {-a d +b c}{b^{2} \left (b x +a \right )}\) | \(33\) |
risch | \(\frac {a d}{b^{2} \left (b x +a \right )}-\frac {c}{b \left (b x +a \right )}+\frac {d \ln \left (b x +a \right )}{b^{2}}\) | \(39\) |
parallelrisch | \(\frac {\ln \left (b x +a \right ) x b d +\ln \left (b x +a \right ) a d +a d -b c}{b^{2} \left (b x +a \right )}\) | \(39\) |
norman | \(\frac {\frac {a \left (a d -b c \right )}{b^{2}}+\frac {\left (a d -b c \right ) x}{b}}{\left (b x +a \right )^{2}}+\frac {d \ln \left (b x +a \right )}{b^{2}}\) | \(48\) |
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none
Time = 0.37 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.22 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=-\frac {b c - a d - {\left (b d x + a d\right )} \log \left (b x + a\right )}{b^{3} x + a b^{2}} \]
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Time = 0.10 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.84 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=\frac {a d - b c}{a b^{2} + b^{3} x} + \frac {d \log {\left (a + b x \right )}}{b^{2}} \]
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Time = 0.19 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.09 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=-\frac {b c - a d}{b^{3} x + a b^{2}} + \frac {d \log \left (b x + a\right )}{b^{2}} \]
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Time = 0.27 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.03 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=\frac {d \log \left ({\left | b x + a \right |}\right )}{b^{2}} - \frac {b c - a d}{{\left (b x + a\right )} b^{2}} \]
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Time = 9.68 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.97 \[ \int \frac {a c+(b c+a d) x+b d x^2}{(a+b x)^3} \, dx=\frac {a\,d-b\,c}{b^2\,\left (a+b\,x\right )}+\frac {d\,\ln \left (a+b\,x\right )}{b^2} \]
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