Question

помогите)
упростите уравнение (3х-2)(2х-1)-(5х+2)(3х-4)

Answer 1

(3х-2)(2х-1)-(5х+2)(3х-4)=
= (6х^2-4х-3х+2)-(15х^2-20х+6х-8)=
=6х^2-7х+2-15х^2+14х+8=
=-9х^2+7х+10

Answer 2

(6x^2-3x-4x+2)-(15x^2-20x+6x-8)= 6x^2-3x-4x+2-15x^2+20-6x+8= -9x^2+7x+10