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posted by yelenaS Monday, December 7, 2009 at 2:12pm.

Factor completely 4a2 - 8a - 5 please help i don't get this at all!!!

After 2 "guesses" I got (2a+1)(2a-5) check it by expanding it

Factor completely and then place the factors in the proper location on the grid. 4a2 - 8a - 5

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