SOLUTION: How do I factor -70a^4 + 68a^3 - 16a^2

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Question 234594: How do I factor -70a^4 + 68a^3 - 16a^2
Answer by Earlsdon(6098) About Me  (Show Source):
You can put this solution on YOUR website!
Factor:
-70a%5E4%2B68a%5E3-16a%5E2 Rewrite this as:
highlight%28-2a%5E2%29%2A%2835a%5E2%29%2Bhighlight%28-2a%5E2%29%28-34a%5E2%29%2Bhighlight%28-2a%5E2%29%288%29 Now factor the common factor of highlight%28-2a%5E2%29
%28-2a%5E2%29%2835a%5E2-34a%2B8%29 Now factor the trinomial.
highlight_green%28%28-2a%5E2%29%287a-4%29%285a-2%29%29