X 5x 4 )= 9 July 8, 2019 16 32 64 128 X 4 5x 2 9 X 4 5x 2 9 0 X 4 5x 9 x 4 4x 5 F x )= 0 5x 4 9 5x 4 3 x 9 2 5x 2 x 4 9x 23 X 4 )( x2 5x 9 X 2 9x 9 =- 5x 4 X 4 5x 3 15x 9 X 2y 4 5x y 9 X 4 5x 90 X 4 5x 2 9 factorise X 4 )( 5x 9 )- x 2 16 0 X 4 5x 3 9x 2 7x 2 X 2x 3 5x 4 9
