11.1 From Linear to Quadratic: Meeting the Quadratic Equation
Point 2 of 5
11.1.2 What a Quadratic Equation Is
Core idea
It's a polynomial equation with one unknown whose highest power is 2, and once tidied up it looks like ax²+bx+c=0 (with a≠0).
Module goal. Picking up from the last stage's linear equations, learn to spot equations with a squared term and understand both their standard look and what a "solution" means.
eastmath.com · 11.1 From Linear to Quadratic: Meeting the Quadratic Equation · 11.1.2 What a Quadratic Equation Is