3/x+1 - x/x²-x-2 = 2x/x²-3x+23/x+1 - x/(x+1)(x-2) =2x/(x-2)(x-1)3(x-2)(x-1)/(x+1)(x-2)(x-1) - x(x-1)/(x-2)(x-1)(x+1) = 2x(x+1)/(x-2)(x-1)(x+1) 3(x-2)(x-1) - x(x-1) = 2x(x+1)3x²-9x+6 -x²+x =2x²+2x10x=6x=0.6