Question 1030067
{{{(x^2/(x^2+x-2)) + (3/(x-1)) - (4/(x+2))}}}


{{{(x^2/((x+2)(x-1))) + (3/(x-1)) - (4/(x+2))}}}


Take the LCM


{{{ (x^2 +3(x+2)-4(x+1))/((x+2)(x-1))}}}


{{{(x^2+3x+6-4x-4)/((x+2)(x-1))}}}


{{{(x^2-x+2)/((x+2)(x-1))}}}