lst=[["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))*x^3","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))*x^2","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))*x","x",1],
["b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2)","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))/x","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))/x^2","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))/x^3","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))/x^4","x",1],
["(b*x+a+(b*x+a-1)^(1/2)*(b*x+a+1)^(1/2))/x^5","x",1],
["exp(acosh(b*x+a)^2)*x^3","x",1],
["exp(acosh(b*x+a)^2)*x^2","x",1],
["exp(acosh(b*x+a)^2)*x","x",1],
["exp(acosh(b*x+a)^2)","x",1],
["exp(acosh(b*x+a)^2)/x","x",0],
["exp(acosh(b*x+a)^2)/x^2","x",0]]