4 2х 5=-7 6 July 8, 2019 16 32 64 128 4 2х 5 =- 7 6 7 5 7 2х )= 6х 4 2х 5 6 4 4х 7 (4 7-х)-5 2=-6 3 2 5-4 6=2х+2 4
