X 3 )( x2 2x 7 July 8, 2019 16 32 64 128 F x )= x3 3x2 2x 7 X3 3x2 2x 7 X2 x 5 )( 2x 3 )( x2 7 )= 0 Expand and simplify x 5x 2 )- 3 x2 2x 7 F x )= x2 2x 7 at x 3 7x2 x 4 )+( x2 2x 3 2x2 3x 5 2x 3 x2 1 x 2 =- 7 X 2 )( x2 2x 4 )-( x 1 3 7