10 7x 2 10x July 8, 2019 16 32 64 128 Y 7x 10 7x 2 10x 10x 10 )-( 7x 2 5x 8 (- 7x 2 5x 10 10x 3 10x 10 7x 3x 2 100 10x =- 7x 10 2 4x 5 7 x 10 10/7 x 2 10 2x-7