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algebra

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Factor completely

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

  • algebra -

    After 2 "guesses" I got
    (2a+1)(2a-5)

    check it by expanding it

  • algebra -

    Factor completely and then place the factors in the proper location on the grid.

    4a2 - 8a - 5

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