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17 June, 07:58

Rewrite the function in "vertex from (by completing the square)

1) f (x) = - x^2 + 8x+3

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Answers (1)
  1. 17 June, 08:06
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    X^2 + 8x + 3

    = (x + 4) ^2 - 16 + 3

    = (x + 4) ^2 - 13 Answer.

    You divide the + 8 by 2 to get the + 4 and you then subtract 4^2 (which is the - 16).
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