Question

(2x-2)^2+(2x+1)•(2x-1) упростить выражение

Answer 1

(2х-2)²+(2х+1)(2х-1) = (2х)²-2*2х*2+2² + (2х)²-1² = 4х²-8х+4+4х²-1 =
8х²-8х+3