2 x 2 5x 9 July 8, 2019 16 32 64 128 X 2 5x 2 9x 45 2 3x 3 x 2 5x =- 9 4 (- x 2 )+ 5x 2 9 X 2 5x 9 5 X 2 5x 9 0 complete the square X 2 5x 9 0 discriminant X 2 5x 90 X 2 5x 90 0 2 x 2 )- 4 x 1 )= 5x 9 X 2 5x 96 0 2 x 2 )- 4 x 3 )= 5x 9 X 2 5x 9 4 0 2x 2 5x 9 0 X2 x 2 )- x x 1 2 5x 9 X 3 2 x 2 5x 9