0 9 x 2 5 July 8, 2019 16 32 64 128 X 2 5x 9 0 X 2 5x 9 0 complete the square 10 9 x 0 46 2 5 X 2 5x 9 0 discriminant X 0 9 2 5 0 3 0 9 3 8 x 2 1 3 5 4 0 5 x 9 )=- 2 1 5 x 0 0 x 9