0 x 2 7x 9 July 8, 2019 16 32 64 128 X 2 7x 98 0 0 x 3 9x 2 7x 63 5 4 x 2 7x 9 0 X 2 7x 9 0 quadratic formula X 2 7x 9 0 complete the square X 2 7x 90 0 X 2 27x 90 0 Solve x 2 7x 9 0 X y 2 0 7x 9y 130 X 4 7x 2 9 0