4 3 4 x 2 x 16 2 5 July 8, 2019 16 32 64 128 X 4 3 2x x 5 2 x 4 x 2 4x 16 x 3 3 4x4 = 16 4 2×(x-4 5)=16 38 4 x 4 x 4 x
