0 7x =- 1 4 July 8, 2019 16 32 64 128 0 7x 1 0 4x 5 0 7x 1 0 4x 2 0 7x 1 82 0 8x 3 46 7x 2 )( 7x 1 4 )= 0 2 1 0 7x 0 48 3 5 0 7x 1 4 0 5x 0 6 0 =( 7x 1 )( 2x 4 8x 1 )( 7x 4 )= 0 7x 1 3 4x 0