5x 2 4x 7 =- 8 July 8, 2019 16 32 64 128 1 6a 4x 2 8a 7 5x 5x 2 6x 7 )-( 3x 3 4x 2 8 5x 7 )( 9x 2 4x 8 7 5x 2 8x =- 4x 3 x 5x 8 3 4x 7 2 2x 7 4x 8x 2 5x 8x 2 4x 2 5x 7 4x 2 5x 7 )+( 3x 2 8x 12 10 8x 2 7 =- 4x 5x 8 7 5x 2 1 4x 12 5x 8 3 )- 4x 2 7 )- 5x 1 6