{(5x+1)/(x^2 + x -2)}- {3/(x+2)}
5x+1x2+x−2−3x+25x+1(x+2)(x−1)−3x+25x+1(x+2)(x−1)−3(x−1)(x+2)(x−1)5x+1(x+2)(x−1)−3x−3(x+2)(x−1)5x+1(x+2)(x−1)+−3x+3(x+2)(x−1)5x+1−3x+3(x+2)(x−1)2x+4(x+2)(x−1)2(x+2)(x+2)(x−1)2x−1