4x 2 12x 10 July 8, 2019 16 32 64 128 4x 2 12x 10 0 4x 5y =- 2 12x 10y 14 4x 2 12x 3 10 6x 2 10x )-( 4x 2 12x 12x 5y 2 4x 10y 3