Mathematisa | Math Animations on Instagram: "✨️Quadratic Formula — Visual Derivation Using Completing the Square 🌛The quadratic formula is one of the most important results in elementary algebra. It provides the solutions to any quadratic equation of the form ax² + bx + c = 0 (with a ≠ 0). Instead of memorizing the formula, this reel explains how it naturally appears through the completing the square method, using a clear visual, geometric approach. By splitting the linear term, arranging the p