A complete digital review for the quadratic equations unit — factoring, the quadratic formula, graphing parabolas, vertex form, and writing equations. Features interactive graphers and step-through worked examples. ★ WHAT'S COVERED • Factoring Quadratics — GCF, factor by grouping, trinomial factoring (a=1 and a≠1), difference of squares; zero product property to solve • Quadratic Formula — x = (−b ± √(b²−4ac)) / 2a; identifying a, b, c; the discriminant (b²−4ac) and what it tells you (two real,