1 10x 2 9x July 8, 2019 16 32 64 128 10x 2 9x 1 0 9x 2 4x 1 10x 2 3 10x 1 )( 6x2 9x 2 10x 2 9x (- 4x 1 10x 2 9x 1 6x 2 H x )= 10x 2 9x 1 2x 10