lst:=[[(x^6-x^5+x^4-x^3+1)*exp(x),x,1],
[(-x^2+2)*exp(x/(x^2+2))/(x^3+2*x),x,1],
[(2*x^4-x^3+3*x^2+2*x+2)*exp(x/(x^2+2))/(x^3+2*x),x,1],
[(1+exp(x))*exp(exp(x)+x)/(exp(x)+x),x,1],
[(x^3-x^2-3*x+1)*exp(1/(x^2-1))/(x^3-x^2-x+1),x,1],
[exp(1+1/ln(x))*(-1+ln(x)^2)/ln(x)^2,x,1],
[exp(x+1/ln(x))*(-1+(1+x)*ln(x)^2)/ln(x)^2,x,1]]