4x 4 2x 9 July 8, 2019 16 32 64 128 1 7 4 2x )=- 9 4x 4x 2x 4 =- 9 5x 8 4x 5 4 2x 9 2 5 4x 4 2x 9 4x 4 2x 40 90 F x )= 4x 4 2x 9 3 4x 7 )+ 4 2x 9 4x 5y 4 2x y 9 4x 2 2x 9 4 4 2x 9 )- 4x 4 6x 4x 3y 1 2x 9y 4 4 2x 8 )- 5 4x 9 2 4x 5 )- 4 6 2x 9 4x 4 2x 3y 3xy 3 9y 4 9 4x 4 )= 8 2x 6