2 x 9 )= 4x July 8, 2019 16 32 64 128 2 x 9 4x 3 2 x 9 )=- 4x 18 2 x 9 )= 4x 6 2 2x 9 4x 3 2 2x 9 )= 4x+ X 2 9 4x 12 X 2 4x 9 0 X 2 4x 9 factored X 2 4x 9 complete the square X 2 4x 9 4 0 2 9 x ) 9 4x 1 X 2 4x 9 5 2x 2 4x 9 0 2x 2 4x 9 discriminant 2 x 7 )= 6x 9 4x