Question

Спростити вираз: (3х + 2)(2х - 1) - (5х - 2)( х - 4)

Answer 1

Ответ:

(3х+2)(2х-1)-(5х-2)(х-4)=6х²-3х+4х-2-(5х²-20х-2х+8)=

=6х²-3х+4х-2-5х²+20х+2х-8=х²+23х-10

Answer 2

Объяснение:

(3х+2)(2х-1)-(5х-2)(х-4)=

=6х²-3х+4х-2-(5х²-20х-2х+8)=

=6х²-3х+4х-2-5х²+20х+2х-8=

=х²+23х-10