9 6x x 2 July 8, 2019 16 32 64 128 9 6x x 2 factorise 9 6x x 2 0 6x 9 x 2 3x 6x 9 2 x )= 12 6x 9 2 x 3 X2 6x 9 x 2 $9 x 2 6x 1 0 4x 2 6x 9 x 2 X 2 6x 9 x 2 4x 4 9 x 2 6x 1 X2 6x 9 =( x 3 2 2 3 6x 9 )= 2 x 4 X 2 6x 9 0 quadratic formula X 2 6x 9 16 X 2 6x 9 0 solve by factoring