0 2x 2 4x 1 July 8, 2019 16 32 64 128 0 =- 2x 2 4x 16 2x 2 4x 10 0 2x 2 4x 1 0 completing the square 2x 2 4x 12 0 2x 2 4x 1 0 quadratic formula 2x 2 4x 14 0 2x 2 4x 17 0 2x 2 4x 18 0 2x 2 4x 1 0 discriminant 2x 2 4x 15 0 2x 2 4x 13 0 2x 2 4x 11 0 2x 2 3 4x 1 0 1 2x 0 4x 2 4y 3x 3 2x 2 4x 1 0