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This video shows you how to factor a polynomial where x squared has the number 1 (one) as its coefficient.
Source: youtube: CoachSettlesAlgebra
This tutorial shows how to factor trinomials by the "grouping" method. Before beginning, make sure to factor out the GCF.
Source: youtube: patrickJMT
This video offers a review of how to factor special case polynomials such as a Difference of Perfect Squares or a Perfect Square Trinomial. You must first factor out the GCF, then check to see if what's left is a "special case" before using these methods.
Source: Youtube: Ms. Crim