Subtract x 2 x 2 from both sides of the equation. y − x 2 = − 2 x − 3 y - x 2 = - 2 x - 3 Add 2 x 2 x to both sides of the equation. y − x 2 + 2 x = − 3 y - x 2 + 2 x = - 3 Add 3 3 to both sides of the equation. y − x 2 + 2 x + 3 = 0 y - x 2 + 2 x + 3 = 0
