lst=[["((1+x)^2)^(1/2)/(x^2+1)^(1/2)","x",1],
["1/(-x^2+1)/(c*x^2+b*x+a)","x",1],
["1/(1-x)/(1+x)/(c*x^2+b*x+a)","x",1],
["(-a*x^2+2*b*x+a)^4/(x^2-1)^5","x",1],
["(f*x^2+e*x+d)^(1/2)/(c*x^2+a)^2","x",1],
["1/(x^2-1)^2/(x^2+x-1)^(1/2)","x",1],
["1/(c*x^2+b*x+a)^(1/2)/(f*x^2+d)^(1/2)","x",1],
["(c*x^2+b*x+a)^3*(f*x^2+d)^q","x",1],
["(c*x^2+b*x+a)^2*(f*x^2+d)^q","x",1],
["(c*x^2+b*x+a)*(f*x^2+d)^q","x",1],
["(f*x^2+d)^q","x",1],
["(f*x^2+d)^q/(c*x^2+b*x+a)","x",1],
["(f*x^2+d)^q/(c*x^2+b*x+a)^2","x",1]]