Integrand size = 27, antiderivative size = 87 \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=\frac {(a+b x) \left (A+B \log \left (\frac {e (a+b x)}{c+d x}\right )\right )}{(b f-a g) (f+g x)}+\frac {B (b c-a d) \log \left (\frac {f+g x}{c+d x}\right )}{(b f-a g) (d f-c g)} \]
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Time = 0.05 (sec) , antiderivative size = 87, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {2554, 2351, 31} \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=\frac {(a+b x) \left (B \log \left (\frac {e (a+b x)}{c+d x}\right )+A\right )}{(f+g x) (b f-a g)}+\frac {B (b c-a d) \log \left (\frac {f+g x}{c+d x}\right )}{(b f-a g) (d f-c g)} \]
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Rule 31
Rule 2351
Rule 2554
Rubi steps \begin{align*} \text {integral}& = (b c-a d) \text {Subst}\left (\int \frac {A+B \log (e x)}{(b f-a g+(-d f+c g) x)^2} \, dx,x,\frac {a+b x}{c+d x}\right ) \\ & = \frac {(a+b x) \left (A+B \log \left (\frac {e (a+b x)}{c+d x}\right )\right )}{(b f-a g) (f+g x)}-\frac {(B (b c-a d)) \text {Subst}\left (\int \frac {1}{b f-a g+(-d f+c g) x} \, dx,x,\frac {a+b x}{c+d x}\right )}{b f-a g} \\ & = \frac {(a+b x) \left (A+B \log \left (\frac {e (a+b x)}{c+d x}\right )\right )}{(b f-a g) (f+g x)}+\frac {B (b c-a d) \log \left (\frac {f+g x}{c+d x}\right )}{(b f-a g) (d f-c g)} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.21 \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=\frac {-\frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{f+g x}+\frac {B (b (d f-c g) \log (a+b x)+(-b d f+a d g) \log (c+d x)+(b c-a d) g \log (f+g x))}{(b f-a g) (d f-c g)}}{g} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(241\) vs. \(2(87)=174\).
Time = 1.19 (sec) , antiderivative size = 242, normalized size of antiderivative = 2.78
method | result | size |
parts | \(-\frac {A}{\left (g x +f \right ) g}-B \left (a d -c b \right ) e \left (\frac {\ln \left (\left (c g -d f \right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )-a e g +b e f \right )}{e \left (a g -b f \right ) \left (c g -d f \right )}-\frac {\ln \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )}{e \left (a g -b f \right ) \left (c g \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )-d f \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )-a e g +b e f \right )}\right )\) | \(242\) |
risch | \(-\frac {B \ln \left (\frac {e \left (b x +a \right )}{d x +c}\right )}{g \left (g x +f \right )}-\frac {-B \ln \left (-d x -c \right ) a d \,g^{2} x +B \ln \left (-d x -c \right ) b d f g x +B \ln \left (g x +f \right ) a d \,g^{2} x -B \ln \left (g x +f \right ) b c \,g^{2} x +B \ln \left (-b x -a \right ) b c \,g^{2} x -B \ln \left (-b x -a \right ) b d f g x -B \ln \left (-d x -c \right ) a d f g +B \ln \left (-d x -c \right ) b d \,f^{2}+B \ln \left (g x +f \right ) a d f g -B \ln \left (g x +f \right ) b c f g +B \ln \left (-b x -a \right ) b c f g -B \ln \left (-b x -a \right ) b d \,f^{2}+A a c \,g^{2}-A a d f g -A b c f g +A b d \,f^{2}}{\left (a g -b f \right ) \left (c g -d f \right ) \left (g x +f \right ) g}\) | \(277\) |
derivativedivides | \(-\frac {e \left (a d -c b \right ) \left (-\frac {d^{2} A}{\left (\left (-c g +d f \right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )+a e g -b e f \right ) \left (-c g +d f \right )}+d^{2} B \left (-\frac {\ln \left (\left (-c g +d f \right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )+a e g -b e f \right )}{e \left (a g -b f \right ) \left (-c g +d f \right )}+\frac {\ln \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )}{e \left (a g -b f \right ) \left (a e g -b e f -c g \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )+d f \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )\right )}\right )\right )}{d^{2}}\) | \(300\) |
default | \(-\frac {e \left (a d -c b \right ) \left (-\frac {d^{2} A}{\left (\left (-c g +d f \right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )+a e g -b e f \right ) \left (-c g +d f \right )}+d^{2} B \left (-\frac {\ln \left (\left (-c g +d f \right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )+a e g -b e f \right )}{e \left (a g -b f \right ) \left (-c g +d f \right )}+\frac {\ln \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right ) \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )}{e \left (a g -b f \right ) \left (a e g -b e f -c g \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )+d f \left (\frac {b e}{d}+\frac {\left (a d -c b \right ) e}{d \left (d x +c \right )}\right )\right )}\right )\right )}{d^{2}}\) | \(300\) |
parallelrisch | \(\frac {B \ln \left (b x +a \right ) a^{2} c d \,f^{2}-B \ln \left (b x +a \right ) a b \,c^{2} f^{2}-B \ln \left (g x +f \right ) a^{2} c d \,f^{2}+B \ln \left (g x +f \right ) a b \,c^{2} f^{2}-B x \ln \left (\frac {e \left (b x +a \right )}{d x +c}\right ) a^{2} c d f g +B x \ln \left (\frac {e \left (b x +a \right )}{d x +c}\right ) a b c d \,f^{2}+B \ln \left (b x +a \right ) x \,a^{2} c d f g -B \ln \left (b x +a \right ) x a b \,c^{2} f g -B \ln \left (g x +f \right ) x \,a^{2} c d f g +B \ln \left (g x +f \right ) x a b \,c^{2} f g +A x \,a^{2} c^{2} g^{2}-A x \,a^{2} c d f g -A x a b \,c^{2} f g +A x a b c d \,f^{2}-B \ln \left (\frac {e \left (b x +a \right )}{d x +c}\right ) a^{2} c^{2} f g +B \ln \left (\frac {e \left (b x +a \right )}{d x +c}\right ) a b \,c^{2} f^{2}}{\left (a c \,g^{2}-a d f g -b c f g +d \,f^{2} b \right ) \left (g x +f \right ) a c f}\) | \(324\) |
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Leaf count of result is larger than twice the leaf count of optimal. 255 vs. \(2 (87) = 174\).
Time = 3.55 (sec) , antiderivative size = 255, normalized size of antiderivative = 2.93 \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=-\frac {A b d f^{2} + A a c g^{2} - {\left (A b c + A a d\right )} f g - {\left (B b d f^{2} - B b c f g + {\left (B b d f g - B b c g^{2}\right )} x\right )} \log \left (b x + a\right ) + {\left (B b d f^{2} - B a d f g + {\left (B b d f g - B a d g^{2}\right )} x\right )} \log \left (d x + c\right ) - {\left ({\left (B b c - B a d\right )} g^{2} x + {\left (B b c - B a d\right )} f g\right )} \log \left (g x + f\right ) + {\left (B b d f^{2} + B a c g^{2} - {\left (B b c + B a d\right )} f g\right )} \log \left (\frac {b e x + a e}{d x + c}\right )}{b d f^{3} g + a c f g^{3} - {\left (b c + a d\right )} f^{2} g^{2} + {\left (b d f^{2} g^{2} + a c g^{4} - {\left (b c + a d\right )} f g^{3}\right )} x} \]
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Timed out. \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=\text {Timed out} \]
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Time = 0.20 (sec) , antiderivative size = 138, normalized size of antiderivative = 1.59 \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=B {\left (\frac {b \log \left (b x + a\right )}{b f g - a g^{2}} - \frac {d \log \left (d x + c\right )}{d f g - c g^{2}} + \frac {{\left (b c - a d\right )} \log \left (g x + f\right )}{b d f^{2} + a c g^{2} - {\left (b c + a d\right )} f g} - \frac {\log \left (\frac {b e x}{d x + c} + \frac {a e}{d x + c}\right )}{g^{2} x + f g}\right )} - \frac {A}{g^{2} x + f g} \]
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Leaf count of result is larger than twice the leaf count of optimal. 511 vs. \(2 (87) = 174\).
Time = 0.50 (sec) , antiderivative size = 511, normalized size of antiderivative = 5.87 \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx={\left (\frac {{\left (B b^{2} c^{2} e - 2 \, B a b c d e + B a^{2} d^{2} e\right )} \log \left (-b e f + a e g + \frac {{\left (b e x + a e\right )} d f}{d x + c} - \frac {{\left (b e x + a e\right )} c g}{d x + c}\right )}{b d f^{2} - b c f g - a d f g + a c g^{2}} + \frac {{\left (B b^{2} c^{2} e^{2} - 2 \, B a b c d e^{2} + B a^{2} d^{2} e^{2}\right )} \log \left (\frac {b e x + a e}{d x + c}\right )}{b d e f^{2} - b c e f g - a d e f g + a c e g^{2} - \frac {{\left (b e x + a e\right )} d^{2} f^{2}}{d x + c} + \frac {2 \, {\left (b e x + a e\right )} c d f g}{d x + c} - \frac {{\left (b e x + a e\right )} c^{2} g^{2}}{d x + c}} - \frac {{\left (B b^{2} c^{2} e - 2 \, B a b c d e + B a^{2} d^{2} e\right )} \log \left (\frac {b e x + a e}{d x + c}\right )}{b d f^{2} - b c f g - a d f g + a c g^{2}} + \frac {A b^{2} c^{2} e^{2} - 2 \, A a b c d e^{2} + A a^{2} d^{2} e^{2}}{b d e f^{2} - b c e f g - a d e f g + a c e g^{2} - \frac {{\left (b e x + a e\right )} d^{2} f^{2}}{d x + c} + \frac {2 \, {\left (b e x + a e\right )} c d f g}{d x + c} - \frac {{\left (b e x + a e\right )} c^{2} g^{2}}{d x + c}}\right )} {\left (\frac {b c}{{\left (b c e - a d e\right )} {\left (b c - a d\right )}} - \frac {a d}{{\left (b c e - a d e\right )} {\left (b c - a d\right )}}\right )} \]
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Time = 1.78 (sec) , antiderivative size = 166, normalized size of antiderivative = 1.91 \[ \int \frac {A+B \log \left (\frac {e (a+b x)}{c+d x}\right )}{(f+g x)^2} \, dx=\frac {B\,d\,\ln \left (c+d\,x\right )}{c\,g^2-d\,f\,g}-\frac {B\,\ln \left (\frac {a\,e+b\,e\,x}{c+d\,x}\right )}{x\,g^2+f\,g}-\frac {B\,b\,\ln \left (a+b\,x\right )}{a\,g^2-b\,f\,g}-\frac {A}{x\,g^2+f\,g}-\frac {B\,a\,d\,\ln \left (f+g\,x\right )}{a\,c\,g^2+b\,d\,f^2-a\,d\,f\,g-b\,c\,f\,g}+\frac {B\,b\,c\,\ln \left (f+g\,x\right )}{a\,c\,g^2+b\,d\,f^2-a\,d\,f\,g-b\,c\,f\,g} \]
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