Chapter 4 Quadratic Equations Standard Form:– ax2 + bx + c = 0 (a≠0)Quadratic Formula:– x = (-b ± √(b2 – 4ac / 2aDiscriminant(D):– D = b2 – 4ac → Real and distinct roots: D > 0 → Real and equal roots: D = 0 → No real roots: D < 0
