Integrand size = 31, antiderivative size = 137 \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=-\frac {B n}{4 b (a+b x)^2}+\frac {B d n}{2 b (b c-a d) (a+b x)}+\frac {B d^2 n \log (a+b x)}{2 b (b c-a d)^2}-\frac {B d^2 n \log (c+d x)}{2 b (b c-a d)^2}-\frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{2 b (a+b x)^2} \]
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Time = 0.06 (sec) , antiderivative size = 137, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.065, Rules used = {2548, 46} \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=-\frac {B \log \left (e (a+b x)^n (c+d x)^{-n}\right )+A}{2 b (a+b x)^2}+\frac {B d^2 n \log (a+b x)}{2 b (b c-a d)^2}-\frac {B d^2 n \log (c+d x)}{2 b (b c-a d)^2}+\frac {B d n}{2 b (a+b x) (b c-a d)}-\frac {B n}{4 b (a+b x)^2} \]
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Rule 46
Rule 2548
Rubi steps \begin{align*} \text {integral}& = -\frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{2 b (a+b x)^2}+\frac {(B (b c-a d) n) \int \frac {1}{(a+b x)^3 (c+d x)} \, dx}{2 b} \\ & = -\frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{2 b (a+b x)^2}+\frac {(B (b c-a d) n) \int \left (\frac {b}{(b c-a d) (a+b x)^3}-\frac {b d}{(b c-a d)^2 (a+b x)^2}+\frac {b d^2}{(b c-a d)^3 (a+b x)}-\frac {d^3}{(b c-a d)^3 (c+d x)}\right ) \, dx}{2 b} \\ & = -\frac {B n}{4 b (a+b x)^2}+\frac {B d n}{2 b (b c-a d) (a+b x)}+\frac {B d^2 n \log (a+b x)}{2 b (b c-a d)^2}-\frac {B d^2 n \log (c+d x)}{2 b (b c-a d)^2}-\frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{2 b (a+b x)^2} \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 121, normalized size of antiderivative = 0.88 \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=-\frac {\frac {2 A}{(a+b x)^2}+B n \left (\frac {1+\frac {2 d (a+b x)}{-b c+a d}}{(a+b x)^2}-\frac {2 d^2 \log (a+b x)}{(b c-a d)^2}+\frac {2 d^2 \log (c+d x)}{(b c-a d)^2}\right )+\frac {2 B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^2}}{4 b} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(333\) vs. \(2(130)=260\).
Time = 19.18 (sec) , antiderivative size = 334, normalized size of antiderivative = 2.44
method | result | size |
parallelrisch | \(-\frac {-4 B a c \,d^{2} n \,b^{4}+2 B \ln \left (d x +c \right ) x^{2} b^{5} d^{3} n -2 B \ln \left (b x +a \right ) a^{2} b^{3} d^{3} n +2 B \ln \left (d x +c \right ) a^{2} b^{3} d^{3} n +2 B x a \,b^{4} d^{3} n -2 B x \,b^{5} c \,d^{2} n -4 B \ln \left (e \left (b x +a \right )^{n} \left (d x +c \right )^{-n}\right ) a \,b^{4} c \,d^{2}+2 A \,a^{2} b^{3} d^{3}+2 A \,b^{5} c^{2} d -4 A a \,b^{4} c \,d^{2}-2 B \ln \left (b x +a \right ) x^{2} b^{5} d^{3} n +3 B \,a^{2} b^{3} d^{3} n +2 B \ln \left (e \left (b x +a \right )^{n} \left (d x +c \right )^{-n}\right ) a^{2} b^{3} d^{3}+2 B \ln \left (e \left (b x +a \right )^{n} \left (d x +c \right )^{-n}\right ) b^{5} c^{2} d +B \,b^{5} c^{2} n d -4 B \ln \left (b x +a \right ) x a \,b^{4} d^{3} n +4 B \ln \left (d x +c \right ) x a \,b^{4} d^{3} n}{4 \left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right ) \left (b x +a \right )^{2} b^{4} d}\) | \(334\) |
risch | \(\text {Expression too large to display}\) | \(1379\) |
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Leaf count of result is larger than twice the leaf count of optimal. 296 vs. \(2 (127) = 254\).
Time = 0.27 (sec) , antiderivative size = 296, normalized size of antiderivative = 2.16 \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=-\frac {2 \, A b^{2} c^{2} - 4 \, A a b c d + 2 \, A a^{2} d^{2} - 2 \, {\left (B b^{2} c d - B a b d^{2}\right )} n x + {\left (B b^{2} c^{2} - 4 \, B a b c d + 3 \, B a^{2} d^{2}\right )} n - 2 \, {\left (B b^{2} d^{2} n x^{2} + 2 \, B a b d^{2} n x - {\left (B b^{2} c^{2} - 2 \, B a b c d\right )} n\right )} \log \left (b x + a\right ) + 2 \, {\left (B b^{2} d^{2} n x^{2} + 2 \, B a b d^{2} n x - {\left (B b^{2} c^{2} - 2 \, B a b c d\right )} n\right )} \log \left (d x + c\right ) + 2 \, {\left (B b^{2} c^{2} - 2 \, B a b c d + B a^{2} d^{2}\right )} \log \left (e\right )}{4 \, {\left (a^{2} b^{3} c^{2} - 2 \, a^{3} b^{2} c d + a^{4} b d^{2} + {\left (b^{5} c^{2} - 2 \, a b^{4} c d + a^{2} b^{3} d^{2}\right )} x^{2} + 2 \, {\left (a b^{4} c^{2} - 2 \, a^{2} b^{3} c d + a^{3} b^{2} d^{2}\right )} x\right )}} \]
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Timed out. \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=\text {Timed out} \]
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Time = 0.20 (sec) , antiderivative size = 230, normalized size of antiderivative = 1.68 \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=\frac {{\left (\frac {2 \, d^{2} e n \log \left (b x + a\right )}{b^{3} c^{2} - 2 \, a b^{2} c d + a^{2} b d^{2}} - \frac {2 \, d^{2} e n \log \left (d x + c\right )}{b^{3} c^{2} - 2 \, a b^{2} c d + a^{2} b d^{2}} + \frac {2 \, b d e n x - b c e n + 3 \, a d e n}{a^{2} b^{2} c - a^{3} b d + {\left (b^{4} c - a b^{3} d\right )} x^{2} + 2 \, {\left (a b^{3} c - a^{2} b^{2} d\right )} x}\right )} B}{4 \, e} - \frac {B \log \left (\frac {{\left (b x + a\right )}^{n} e}{{\left (d x + c\right )}^{n}}\right )}{2 \, {\left (b^{3} x^{2} + 2 \, a b^{2} x + a^{2} b\right )}} - \frac {A}{2 \, {\left (b^{3} x^{2} + 2 \, a b^{2} x + a^{2} b\right )}} \]
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Time = 0.33 (sec) , antiderivative size = 243, normalized size of antiderivative = 1.77 \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=\frac {B d^{2} n \log \left (b x + a\right )}{2 \, {\left (b^{3} c^{2} - 2 \, a b^{2} c d + a^{2} b d^{2}\right )}} - \frac {B d^{2} n \log \left (d x + c\right )}{2 \, {\left (b^{3} c^{2} - 2 \, a b^{2} c d + a^{2} b d^{2}\right )}} - \frac {B n \log \left (b x + a\right )}{2 \, {\left (b^{3} x^{2} + 2 \, a b^{2} x + a^{2} b\right )}} + \frac {B n \log \left (d x + c\right )}{2 \, {\left (b^{3} x^{2} + 2 \, a b^{2} x + a^{2} b\right )}} + \frac {2 \, B b d n x - B b c n + 3 \, B a d n - 2 \, B b c \log \left (e\right ) + 2 \, B a d \log \left (e\right ) - 2 \, A b c + 2 \, A a d}{4 \, {\left (b^{4} c x^{2} - a b^{3} d x^{2} + 2 \, a b^{3} c x - 2 \, a^{2} b^{2} d x + a^{2} b^{2} c - a^{3} b d\right )}} \]
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Time = 1.24 (sec) , antiderivative size = 192, normalized size of antiderivative = 1.40 \[ \int \frac {A+B \log \left (e (a+b x)^n (c+d x)^{-n}\right )}{(a+b x)^3} \, dx=-\frac {\frac {2\,A\,a\,d-2\,A\,b\,c+3\,B\,a\,d\,n-B\,b\,c\,n}{2\,\left (a\,d-b\,c\right )}+\frac {B\,b\,d\,n\,x}{a\,d-b\,c}}{2\,a^2\,b+4\,a\,b^2\,x+2\,b^3\,x^2}-\frac {B\,\ln \left (\frac {e\,{\left (a+b\,x\right )}^n}{{\left (c+d\,x\right )}^n}\right )}{2\,b\,\left (a^2+2\,a\,b\,x+b^2\,x^2\right )}-\frac {B\,d^2\,n\,\mathrm {atanh}\left (\frac {2\,b^3\,c^2-2\,a^2\,b\,d^2}{2\,b\,{\left (a\,d-b\,c\right )}^2}-\frac {2\,b\,d\,x}{a\,d-b\,c}\right )}{b\,{\left (a\,d-b\,c\right )}^2} \]
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