4x 2 8x 4x 2 July 8, 2019 16 32 64 128 4x 2 8x 21 4x 2 8x 21 0 4x 2 8x 2 0 4x 2 8x 24 4x 2 8x 20 0 4x 2 8x 24 0 4x 2 8x 25 4x 2 8x 2x 4x 2 28x 2 4x 1 2 8x 6 )= 2 4x 3 8x 3 4x 2 4x 2 (- 4x 2 6x )-( 4x 2 8x 6 8x 2 4x 2 =- 8 4x 4x 2 8x 4 4x 2 1 4x 2 5x )+( 8x 2 4x
