4×(1 2х 3 7)=2 8 July 8, 2019 16 32 64 128 4 *( 1 2х 3 7 )= 2 8 4 1 2х 3 7 )- 2 8 5 2х 8 2х 3 )+ 7 4 2 х )- 1 4 7х-1 8=3 2+2 2х 4 1/2 + 1 1/3
