X 2 9x 2 5 July 8, 2019 16 32 64 128 X 2 3x 2 9x 5 X 2 9x 5 0 X 2 9x 52 X 2 9x 52 0 X 2 9x 54 1 3x 2 x 9x 2 )= 5 X 2 9x 50 0 X 2 9x 5 0 discriminant X 2 9x 5x 45 X 2 9x 54 0 X 2 5x 9x 2 x 5 3x X2 9x 2 5 0 X 2 9x 2 5x 2 7 X 2 9x 14 x 2 5x 14 X 2 x 2 9x 56