L3 (2x+5)
=3х2х +3xs
=6x +15
Р -35(2x+4)
=-3xx2x+-3xcx4
=-6x+-21х
М-12(3-5x)
=12x3 -12х 5x
=36-60x
N=2x (x-3)
-
= 2x xx-2xcx9
2x - 18x