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