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12 April, 00:16

Using the completing-the-square method, rewrite f (x) = x2 4x - 1 in vertex form.

a. f (x) = (x + 2) ^2 + 1

b. f (x) = (x + 2^) 2

c. f (x) = (x + 2^) 2 + 4

d. f (x) = (x + 2) ^2 - 5

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Answers (1)
  1. 12 April, 00:25
    0
    D) f (x) = (x+2) ² - 5

    by the completion of the square
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