Integrand size = 30, antiderivative size = 139 \[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\frac {(b e-a f) (a+b x)^{1+m} (c+d x)^{-m-n} \left (\frac {b (c+d x)}{b c-a d}\right )^{m+n} (e+f x)^n \left (\frac {b (e+f x)}{b e-a f}\right )^{-n} \operatorname {AppellF1}\left (1+m,m+n,-1-n,2+m,-\frac {d (a+b x)}{b c-a d},-\frac {f (a+b x)}{b e-a f}\right )}{b^2 (1+m)} \]
(-a*f+b*e)*(b*x+a)^(1+m)*(d*x+c)^(-m-n)*(b*(d*x+c)/(-a*d+b*c))^(m+n)*(f*x+ e)^n*AppellF1(1+m,m+n,-1-n,2+m,-d*(b*x+a)/(-a*d+b*c),-f*(b*x+a)/(-a*f+b*e) )/b^2/(1+m)/((b*(f*x+e)/(-a*f+b*e))^n)
Time = 0.23 (sec) , antiderivative size = 133, normalized size of antiderivative = 0.96 \[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\frac {(a+b x)^{1+m} (c+d x)^{-m-n} \left (\frac {b (c+d x)}{b c-a d}\right )^{m+n} (e+f x)^{1+n} \left (\frac {b (e+f x)}{b e-a f}\right )^{-1-n} \operatorname {AppellF1}\left (1+m,m+n,-1-n,2+m,\frac {d (a+b x)}{-b c+a d},\frac {f (a+b x)}{-b e+a f}\right )}{b (1+m)} \]
((a + b*x)^(1 + m)*(c + d*x)^(-m - n)*((b*(c + d*x))/(b*c - a*d))^(m + n)* (e + f*x)^(1 + n)*((b*(e + f*x))/(b*e - a*f))^(-1 - n)*AppellF1[1 + m, m + n, -1 - n, 2 + m, (d*(a + b*x))/(-(b*c) + a*d), (f*(a + b*x))/(-(b*e) + a *f)])/(b*(1 + m))
Time = 0.27 (sec) , antiderivative size = 139, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {157, 156, 155}
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.
\(\displaystyle \int (a+b x)^m (e+f x)^{n+1} (c+d x)^{-m-n} \, dx\) |
\(\Big \downarrow \) 157 |
\(\displaystyle (c+d x)^{-m-n} \left (\frac {b (c+d x)}{b c-a d}\right )^{m+n} \int (a+b x)^m \left (\frac {b c}{b c-a d}+\frac {b d x}{b c-a d}\right )^{-m-n} (e+f x)^{n+1}dx\) |
\(\Big \downarrow \) 156 |
\(\displaystyle \frac {(b e-a f) (e+f x)^n (c+d x)^{-m-n} \left (\frac {b (e+f x)}{b e-a f}\right )^{-n} \left (\frac {b (c+d x)}{b c-a d}\right )^{m+n} \int (a+b x)^m \left (\frac {b c}{b c-a d}+\frac {b d x}{b c-a d}\right )^{-m-n} \left (\frac {b e}{b e-a f}+\frac {b f x}{b e-a f}\right )^{n+1}dx}{b}\) |
\(\Big \downarrow \) 155 |
\(\displaystyle \frac {(b e-a f) (a+b x)^{m+1} (e+f x)^n (c+d x)^{-m-n} \left (\frac {b (e+f x)}{b e-a f}\right )^{-n} \left (\frac {b (c+d x)}{b c-a d}\right )^{m+n} \operatorname {AppellF1}\left (m+1,m+n,-n-1,m+2,-\frac {d (a+b x)}{b c-a d},-\frac {f (a+b x)}{b e-a f}\right )}{b^2 (m+1)}\) |
((b*e - a*f)*(a + b*x)^(1 + m)*(c + d*x)^(-m - n)*((b*(c + d*x))/(b*c - a* d))^(m + n)*(e + f*x)^n*AppellF1[1 + m, m + n, -1 - n, 2 + m, -((d*(a + b* x))/(b*c - a*d)), -((f*(a + b*x))/(b*e - a*f))])/(b^2*(1 + m)*((b*(e + f*x ))/(b*e - a*f))^n)
3.32.46.3.1 Defintions of rubi rules used
Int[((a_) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_)) ^(p_), x_] :> Simp[((a + b*x)^(m + 1)/(b*(m + 1)*Simplify[b/(b*c - a*d)]^n* Simplify[b/(b*e - a*f)]^p))*AppellF1[m + 1, -n, -p, m + 2, (-d)*((a + b*x)/ (b*c - a*d)), (-f)*((a + b*x)/(b*e - a*f))], x] /; FreeQ[{a, b, c, d, e, f, m, n, p}, x] && !IntegerQ[m] && !IntegerQ[n] && !IntegerQ[p] && GtQ[Sim plify[b/(b*c - a*d)], 0] && GtQ[Simplify[b/(b*e - a*f)], 0] && !(GtQ[Simpl ify[d/(d*a - c*b)], 0] && GtQ[Simplify[d/(d*e - c*f)], 0] && SimplerQ[c + d *x, a + b*x]) && !(GtQ[Simplify[f/(f*a - e*b)], 0] && GtQ[Simplify[f/(f*c - e*d)], 0] && SimplerQ[e + f*x, a + b*x])
Int[((a_) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_)) ^(p_), x_] :> Simp[(e + f*x)^FracPart[p]/(Simplify[b/(b*e - a*f)]^IntPart[p ]*(b*((e + f*x)/(b*e - a*f)))^FracPart[p]) Int[(a + b*x)^m*(c + d*x)^n*Si mp[b*(e/(b*e - a*f)) + b*f*(x/(b*e - a*f)), x]^p, x], x] /; FreeQ[{a, b, c, d, e, f, m, n, p}, x] && !IntegerQ[m] && !IntegerQ[n] && !IntegerQ[p] & & GtQ[Simplify[b/(b*c - a*d)], 0] && !GtQ[Simplify[b/(b*e - a*f)], 0]
Int[((a_) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_)*((e_.) + (f_.)*(x_)) ^(p_), x_] :> Simp[(c + d*x)^FracPart[n]/(Simplify[b/(b*c - a*d)]^IntPart[n ]*(b*((c + d*x)/(b*c - a*d)))^FracPart[n]) Int[(a + b*x)^m*Simp[b*(c/(b*c - a*d)) + b*d*(x/(b*c - a*d)), x]^n*(e + f*x)^p, x], x] /; FreeQ[{a, b, c, d, e, f, m, n, p}, x] && !IntegerQ[m] && !IntegerQ[n] && !IntegerQ[p] & & !GtQ[Simplify[b/(b*c - a*d)], 0] && !SimplerQ[c + d*x, a + b*x] && !Si mplerQ[e + f*x, a + b*x]
\[\int \left (b x +a \right )^{m} \left (d x +c \right )^{-n -m} \left (f x +e \right )^{1+n}d x\]
\[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\int { {\left (b x + a\right )}^{m} {\left (d x + c\right )}^{-m - n} {\left (f x + e\right )}^{n + 1} \,d x } \]
Timed out. \[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\text {Timed out} \]
\[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\int { {\left (b x + a\right )}^{m} {\left (d x + c\right )}^{-m - n} {\left (f x + e\right )}^{n + 1} \,d x } \]
\[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\int { {\left (b x + a\right )}^{m} {\left (d x + c\right )}^{-m - n} {\left (f x + e\right )}^{n + 1} \,d x } \]
Timed out. \[ \int (a+b x)^m (c+d x)^{-m-n} (e+f x)^{1+n} \, dx=\int \frac {{\left (e+f\,x\right )}^{n+1}\,{\left (a+b\,x\right )}^m}{{\left (c+d\,x\right )}^{m+n}} \,d x \]