5х 12 2 х 1 )= 3 5 2х ) 4х July 8, 2019 16 32 64 128 5х 12 2 х 1 )= 3 5 2х )+ 4х 5^2х-1-5^2х-3=4 8 5х+1 ‒ 3·5х‒2 = 122