Summary

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 * ** GCF- factor out the GCF **
 * 2x 2 -16x+6
 * 2(x 2 -8x+3)
 * **Difference of Squares**
 * 4x 2 -81
 * (2x-9)(2x+9)
 * **Perfect Square Trinomials**
 * 9x 2 -24x+16
 * (3x-4) 2
 * **Trinomials where a=1**
 * x 2 +15x+50
 * (x+5)(x+10)
 * **Trinomials where a does not equal 1.**
 * 2x 2 +11x-30
 * (2x+15)(x-2)