Question

(х-2)^2-(х-1)(х+2) решите

Answer 1

(x-2)^2-(x-1)(x+2)=x^2-4*x+4-x^2-x+2=-4x+4-x+2=-5x+4+2=-5x+6=6-5x

Answer 2

(х-2)^2-(х-1)(х+2)= х^2- 4х+ 4 -х^2 -2х+ х+ 2= -5х+6