Trinomial++(a=1)

= ** FACTORING TRINOMIALS WHERE (a **=1)  = media type="youtube" key="nOZTe8jU2g4" height="346" width="616" align="center"

a x 2 + bx + c  1 st Step: Factor out the Greatest Common Factor (GCF) 2 nd Step: Check for Difference of Squares 3 rd Step: Check for Perfect Square Trinomials 4 th Step: Check if a = 1 5th Step: Reverse FOIL Examples of a = 1 x 2 +9x + 20  Check for GCF (no GCF with x 2 ) Check for difference of squares (not a binomial) Check for perfect square trinomials (no square with x 2 ) Check if a=1 ( x 2  ) Reverse FOIL  (x+4)(x+5)   4•5 = 20 / 4x+5x = 9x

x 2 + 10x + 25  Check for GCF (no GCF) Check for difference of squares (none) Check for perfect square trinomials (none) Check if a=1 ( x 2 ) Reverse FOIL   (x+5)(x+5)   5•5 = 25 / 5x + 5x = 10x YOU'RE DONE!!!

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