2 x 2 42 July 8, 2019 16 32 64 128 90 2 х 2 42 6 2 1 2 x 42 X 2 3x 2 42 X 2 y 2 42 X2 - 2 x 4 + 42 2x 2 4x 2 42 2 x 2 5 2*2 is 4