Stage 11 · Quadratic Equations

11.4.1 The Core Idea: "a Product That Equals Zero"

11.4 Factoring and Choosing Your Method

Point 1 of 4

11.4.1 The Core Idea: "a Product That Equals Zero"

Core idea

If two numbers multiply to 0, one of them must be 0 — so A·B=0 splits into A=0 or B=0.

Module goal. Master the quickest method — factoring — and learn to pick the least-effort approach among the three.
eastmath.com · 11.4 Factoring and Choosing Your Method · 11.4.1 The Core Idea: "a Product That Equals Zero"