Lela, let's break everything down.
2(2)(2)(3)nnnn + 2(2)(3)nnn - 2(3)(3)(3)nn
What's common between everything? 2(3)nn = 6n2
What's left?
6n2(4n2 + 2n - 9)
Hope this helps!
Lela R.
asked 05/15/16
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