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16 March, 20:29

Factor completely, then place the answer in the proper location on the grid.

16x^2 + 8x - 15

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Answers (2)
  1. 16 March, 22:53
    0
    16x^2+8x-15 = (4x+5) (4x-3)
  2. 16 March, 23:20
    0
    Hello:

    16x² + 8x - 15 = 16 (x² + (1/2) x) - 15

    = 16 (x²+1/2x+1/16-1/16) - 15

    = 16 ((x+1/4) ² - 1/16) - 15

    = 16 (x+1/4) ²-1-15

    =16 (x+1/4) ²-16

    =16 ((x+1/4) ²-1²)

    =16 (x+1/4-1) (x+1/4+1)

    =16 (x-3/4) (x+5/4)

    =16/16 (4x-3) (4x+5)

    Factor completely, is:

    16x² + 8x - 15 = (4x-3) (4x+5)
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