2 7 3x 9 x 2 1 July 8, 2019 16 32 64 128 7 3x 2 )- 9 13 x 2 )+ x 3x 2 )( 2x 9 )-( x 2 )( 6x 1 )= 7 2 3x 4 9 1 2 3 7 x 0 X 2 18x 7 =- 3x 2 2x 9 2x 7 2x 9