2 4 x 0 1 July 8, 2019 16 32 64 128 4 2 4x 1 0 X 2 4 x 12 0 1 x 2 4 x 12 0 X 4 2 4x 16 0 2 x 4 2 18 0 2 4 x 0 3 1 2 X 2 3x 4 x 1 0 18x 2 x 4 0 2 4×0 1 2 4 x 0 4 2 4 x 0 5 2 1 x-0 4 0 4 2 - 2 = 0