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 * Summary **

**__ GCF __** Step 1-- 3x 2 - 6x + 15   Step 2-- 3(x 2 -2 + 5)

**__Difference of Squares__**  Step 1-- 25x 2 - 49   Step 2-- (5x + 7) (5x - 7)

__**Perfect Square Trinomial**__  Step 1-- 4x 2 + 12x + 9   Step 2-- (2x + 3) 2

__**Trinomial Where A = 1**__ Step 1-- Step 2--

__** Trinomial Where A ≠ 1 **__ Step 1-- Step 2--