Factoring quadratics by grouping

Sal factors 4y^2+4y-15 as (2y-3)(2y+5) by grouping.

Factor quadratics: leading coefficient ≠ 1

Factor quadratics of the form ax²+bx+c.

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# Intro to grouping

Sal introduces the method of grouping, which is very useful in factoring quadratics whose leading coefficient is not 1. Created by Sal Khan and CK-12 Foundation.