Question

помогите срочно решить

Answer 1

$frac{(3x+1)*(x+1)-(2x-10)*(x-2)}{(x+1)(x-2)} = frac{3x^2+x+3x+1-(2x^2-10x-4x+20)}{(x+1)(x-2)} =$  $frac{3x^2+x+3x+1-2x^2+10x+4x-20)}{(x+1)(x-2)} = frac{x^2+18x-19}{(x+1)(x-2)} = x^2+18x-19=0 ; left { {{x_1=-19} atop {x_2=1}} right.$ ;