Question

Помогите упростить выражение (3х+1) (4х-2)-6 (2х-1)²+14.

Answer 1

 (3х+1) (4х-2)-6 (2х-1)²+14=

=12x²-6x+4x-2-6(4x²-4x+1)+14=

=12x²-6x+4x-2-24x²+24x-6+14=

=-12x²+22x+6

Answer 2

( 3x + 1 )( 4x - 2 ) - 6( 2x - 1 )^2 + 14 = 12x^2 - 6x + 4x - 2 - 6( 4x^2 - 4x + 1 ) + 14 =
= 12x^2 - 2x - 2 - 24x^2 + 24x - 6 + 14 = - 12x^2 + 22x + 6