0 5 2x 1 0 25 July 8, 2019 16 32 64 128 0 25 x 2 )= 0 5 2x 1 2 x 5 0 5x 1 2x 4 0 25 3 6 0 5 2x 1 )= x 0 25 2 4x 0 25 x 4 0 5 2x 1