X 2 7x 20 July 8, 2019 16 32 64 128 X 2 7x 20 0 3x 2 7x 20 )/( x 4 X 2 7x 24 20 4 x 2 7x 20 Factorise x 2 7x 20 2 x 20 )= 7x 30 X 3 7x 2 20x 50 X 3 9x 2 27x 20 X 3 9x 2 27x 2027 7x 2 x 2 20 2x 5 X 2 20x 36 =- 7x 7x 2x x 2 20x 16 Given f x )= 3x 2 7x 20 3x 2 7x 20 )/( x 5