12 х = - 0 4 х = July 8, 2019 16 32 64 128 12 x 0 4 x 4х 12 0 х 4 1 1 х2 4 х 12 0 Х 4 х 2 12 0 Х 3 4 )*( х 12 )= 0 12 х = - 0 4