SOLUTION: factor each expression: 8x^3 + 4x^2 - 2X-1

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Question 119400: factor each expression:
8x^3 + 4x^2 - 2X-1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

8x%5E3%2B4x%5E2-2x-1 Start with the given expression

%288x%5E3%2B4x%5E2%29%2B%28-2x-1%29 Group like terms


4x%5E2%282x%2B1%29-1%282x%2B1%29 Factor out the GCF 4x%5E2 out of the first group. Factor out the GCF -1 out of the second group


%284x%5E2-1%29%282x%2B1%29 Since we have the common term 2x%2B1, we can combine like terms

So 8x%5E3%2B4x%5E2-2x-1 factors to %284x%5E2-1%29%282x%2B1%29