Quadratic Equation Calculator

Solve quadratic equations in the form ax² + bx + c = 0 using the quadratic formula.

Quadratic Formula

x = (-b ± √(b² - 4ac)) / 2a

Popular Quadratic Equations

x² + 5x + 6 = 0 → x² + 7x + 12 = 0 → x² + 3x + 2 = 0 → x² - 5x + 6 = 0 → x² + 2x - 3 = 0 → x² - x - 6 = 0 → x² - 4 = 0 → x² - 9 = 0 → x² - 16 = 0 → x² - 25 = 0 → 2x² + 5x + 3 = 0 → 2x² + 7x + 3 = 0 → 3x² + 10x + 3 = 0 → 2x² - 7x + 3 = 0 → 4x² + 4x + 1 = 0 → x² + 1 = 0 → x² + 2x + 5 = 0 → x² + 4x + 5 = 0 →