Integrand size = 29, antiderivative size = 252 \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=-\frac {b e n \log (d+e x)}{(e h-d i) (g h-f i)}+\frac {a+b \log \left (c (d+e x)^n\right )}{(g h-f i) (h+i x)}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e (f+g x)}{e f-d g}\right )}{(g h-f i)^2}+\frac {b e n \log (h+i x)}{(e h-d i) (g h-f i)}-\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e (h+i x)}{e h-d i}\right )}{(g h-f i)^2}+\frac {b g n \operatorname {PolyLog}\left (2,-\frac {g (d+e x)}{e f-d g}\right )}{(g h-f i)^2}-\frac {b g n \operatorname {PolyLog}\left (2,-\frac {i (d+e x)}{e h-d i}\right )}{(g h-f i)^2} \]
-b*e*n*ln(e*x+d)/(-d*i+e*h)/(-f*i+g*h)+(a+b*ln(c*(e*x+d)^n))/(-f*i+g*h)/(i *x+h)+g*(a+b*ln(c*(e*x+d)^n))*ln(e*(g*x+f)/(-d*g+e*f))/(-f*i+g*h)^2+b*e*n* ln(i*x+h)/(-d*i+e*h)/(-f*i+g*h)-g*(a+b*ln(c*(e*x+d)^n))*ln(e*(i*x+h)/(-d*i +e*h))/(-f*i+g*h)^2+b*g*n*polylog(2,-g*(e*x+d)/(-d*g+e*f))/(-f*i+g*h)^2-b* g*n*polylog(2,-i*(e*x+d)/(-d*i+e*h))/(-f*i+g*h)^2
Time = 0.11 (sec) , antiderivative size = 196, normalized size of antiderivative = 0.78 \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=\frac {\frac {(g h-f i) \left (a+b \log \left (c (d+e x)^n\right )\right )}{h+i x}+g \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e (f+g x)}{e f-d g}\right )-\frac {b e (g h-f i) n (\log (d+e x)-\log (h+i x))}{e h-d i}-g \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e (h+i x)}{e h-d i}\right )+b g n \operatorname {PolyLog}\left (2,\frac {g (d+e x)}{-e f+d g}\right )-b g n \operatorname {PolyLog}\left (2,\frac {i (d+e x)}{-e h+d i}\right )}{(g h-f i)^2} \]
(((g*h - f*i)*(a + b*Log[c*(d + e*x)^n]))/(h + i*x) + g*(a + b*Log[c*(d + e*x)^n])*Log[(e*(f + g*x))/(e*f - d*g)] - (b*e*(g*h - f*i)*n*(Log[d + e*x] - Log[h + i*x]))/(e*h - d*i) - g*(a + b*Log[c*(d + e*x)^n])*Log[(e*(h + i *x))/(e*h - d*i)] + b*g*n*PolyLog[2, (g*(d + e*x))/(-(e*f) + d*g)] - b*g*n *PolyLog[2, (i*(d + e*x))/(-(e*h) + d*i)])/(g*h - f*i)^2
Time = 0.51 (sec) , antiderivative size = 252, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.069, Rules used = {2865, 2009}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
| \(\displaystyle \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx\) |
| \(\Big \downarrow \) 2865 |
| \(\displaystyle \int \left (\frac {g^2 \left (a+b \log \left (c (d+e x)^n\right )\right )}{(f+g x) (g h-f i)^2}-\frac {g i \left (a+b \log \left (c (d+e x)^n\right )\right )}{(h+i x) (g h-f i)^2}-\frac {i \left (a+b \log \left (c (d+e x)^n\right )\right )}{(h+i x)^2 (g h-f i)}\right )dx\) |
| \(\Big \downarrow \) 2009 |
| \(\displaystyle \frac {a+b \log \left (c (d+e x)^n\right )}{(h+i x) (g h-f i)}+\frac {g \log \left (\frac {e (f+g x)}{e f-d g}\right ) \left (a+b \log \left (c (d+e x)^n\right )\right )}{(g h-f i)^2}-\frac {g \log \left (\frac {e (h+i x)}{e h-d i}\right ) \left (a+b \log \left (c (d+e x)^n\right )\right )}{(g h-f i)^2}+\frac {b g n \operatorname {PolyLog}\left (2,-\frac {g (d+e x)}{e f-d g}\right )}{(g h-f i)^2}-\frac {b g n \operatorname {PolyLog}\left (2,-\frac {i (d+e x)}{e h-d i}\right )}{(g h-f i)^2}-\frac {b e n \log (d+e x)}{(e h-d i) (g h-f i)}+\frac {b e n \log (h+i x)}{(e h-d i) (g h-f i)}\) |
-((b*e*n*Log[d + e*x])/((e*h - d*i)*(g*h - f*i))) + (a + b*Log[c*(d + e*x) ^n])/((g*h - f*i)*(h + i*x)) + (g*(a + b*Log[c*(d + e*x)^n])*Log[(e*(f + g *x))/(e*f - d*g)])/(g*h - f*i)^2 + (b*e*n*Log[h + i*x])/((e*h - d*i)*(g*h - f*i)) - (g*(a + b*Log[c*(d + e*x)^n])*Log[(e*(h + i*x))/(e*h - d*i)])/(g *h - f*i)^2 + (b*g*n*PolyLog[2, -((g*(d + e*x))/(e*f - d*g))])/(g*h - f*i) ^2 - (b*g*n*PolyLog[2, -((i*(d + e*x))/(e*h - d*i))])/(g*h - f*i)^2
3.3.22.3.1 Defintions of rubi rules used
Int[((a_.) + Log[(c_.)*((d_) + (e_.)*(x_))^(n_.)]*(b_.))^(p_.)*(RFx_), x_Sy mbol] :> With[{u = ExpandIntegrand[(a + b*Log[c*(d + e*x)^n])^p, RFx, x]}, Int[u, x] /; SumQ[u]] /; FreeQ[{a, b, c, d, e, n}, x] && RationalFunctionQ[ RFx, x] && IntegerQ[p]
Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 1.72 (sec) , antiderivative size = 494, normalized size of antiderivative = 1.96
| method | result | size |
| risch | \(-\frac {b \ln \left (\left (e x +d \right )^{n}\right )}{\left (f i -g h \right ) \left (i x +h \right )}-\frac {b \ln \left (\left (e x +d \right )^{n}\right ) g \ln \left (i x +h \right )}{\left (f i -g h \right )^{2}}+\frac {b \ln \left (\left (e x +d \right )^{n}\right ) g \ln \left (g x +f \right )}{\left (f i -g h \right )^{2}}-\frac {b n g \operatorname {dilog}\left (\frac {\left (g x +f \right ) e +d g -e f}{d g -e f}\right )}{\left (f i -g h \right )^{2}}-\frac {b n g \ln \left (g x +f \right ) \ln \left (\frac {\left (g x +f \right ) e +d g -e f}{d g -e f}\right )}{\left (f i -g h \right )^{2}}-\frac {b e n \ln \left (e x +d \right )}{\left (f i -g h \right ) \left (d i -e h \right )}+\frac {b e n \ln \left (i x +h \right )}{\left (f i -g h \right ) \left (d i -e h \right )}+\frac {b n g \operatorname {dilog}\left (\frac {\left (i x +h \right ) e +d i -e h}{d i -e h}\right )}{\left (f i -g h \right )^{2}}+\frac {b n g \ln \left (i x +h \right ) \ln \left (\frac {\left (i x +h \right ) e +d i -e h}{d i -e h}\right )}{\left (f i -g h \right )^{2}}+\left (-\frac {i b \pi \,\operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right ) \operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i \left (e x +d \right )^{n}\right )}{2}+\frac {i \pi \,\operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right )^{2} b}{2}+\frac {i \pi \,\operatorname {csgn}\left (i \left (e x +d \right )^{n}\right ) \operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right )^{2} b}{2}-\frac {i \pi \operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right )^{3} b}{2}+b \ln \left (c \right )+a \right ) \left (-\frac {1}{\left (f i -g h \right ) \left (i x +h \right )}-\frac {g \ln \left (i x +h \right )}{\left (f i -g h \right )^{2}}+\frac {g \ln \left (g x +f \right )}{\left (f i -g h \right )^{2}}\right )\) | \(494\) |
-b*ln((e*x+d)^n)/(f*i-g*h)/(i*x+h)-b*ln((e*x+d)^n)*g/(f*i-g*h)^2*ln(i*x+h) +b*ln((e*x+d)^n)*g/(f*i-g*h)^2*ln(g*x+f)-b*n*g/(f*i-g*h)^2*dilog(((g*x+f)* e+d*g-e*f)/(d*g-e*f))-b*n*g/(f*i-g*h)^2*ln(g*x+f)*ln(((g*x+f)*e+d*g-e*f)/( d*g-e*f))-b*e*n/(f*i-g*h)/(d*i-e*h)*ln(e*x+d)+b*e*n/(f*i-g*h)/(d*i-e*h)*ln (i*x+h)+b*n*g/(f*i-g*h)^2*dilog(((i*x+h)*e+d*i-e*h)/(d*i-e*h))+b*n*g/(f*i- g*h)^2*ln(i*x+h)*ln(((i*x+h)*e+d*i-e*h)/(d*i-e*h))+(-1/2*I*b*Pi*csgn(I*c)* csgn(I*(e*x+d)^n)*csgn(I*c*(e*x+d)^n)+1/2*I*b*Pi*csgn(I*c)*csgn(I*c*(e*x+d )^n)^2+1/2*I*b*Pi*csgn(I*(e*x+d)^n)*csgn(I*c*(e*x+d)^n)^2-1/2*I*b*Pi*csgn( I*c*(e*x+d)^n)^3+b*ln(c)+a)*(-1/(f*i-g*h)/(i*x+h)-g/(f*i-g*h)^2*ln(i*x+h)+ g/(f*i-g*h)^2*ln(g*x+f))
\[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=\int { \frac {b \log \left ({\left (e x + d\right )}^{n} c\right ) + a}{{\left (g x + f\right )} {\left (i x + h\right )}^{2}} \,d x } \]
integral((b*log((e*x + d)^n*c) + a)/(g*i^2*x^3 + f*h^2 + (2*g*h*i + f*i^2) *x^2 + (g*h^2 + 2*f*h*i)*x), x)
Timed out. \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=\text {Timed out} \]
\[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=\int { \frac {b \log \left ({\left (e x + d\right )}^{n} c\right ) + a}{{\left (g x + f\right )} {\left (i x + h\right )}^{2}} \,d x } \]
a*(g*log(g*x + f)/(g^2*h^2 - 2*f*g*h*i + f^2*i^2) - g*log(i*x + h)/(g^2*h^ 2 - 2*f*g*h*i + f^2*i^2) + 1/(g*h^2 - f*h*i + (g*h*i - f*i^2)*x)) + b*inte grate((log((e*x + d)^n) + log(c))/(g*i^2*x^3 + f*h^2 + (2*g*h*i + f*i^2)*x ^2 + (g*h^2 + 2*f*h*i)*x), x)
\[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=\int { \frac {b \log \left ({\left (e x + d\right )}^{n} c\right ) + a}{{\left (g x + f\right )} {\left (i x + h\right )}^{2}} \,d x } \]
Timed out. \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{(f+g x) (h+i x)^2} \, dx=\int \frac {a+b\,\ln \left (c\,{\left (d+e\,x\right )}^n\right )}{\left (f+g\,x\right )\,{\left (h+i\,x\right )}^2} \,d x \]