miguemira2y miguemira2y

05-05-2016
Mathematics

Answered

How many zero pairs must be added to the function

f(x) = x2 – 10x – 4 in order to begin writing the function in vertex form?

A.4

B.10

C.21

D.25

Verified Answer :

meerkat18 meerkat18

12-05-2016

f(x) = x² - 10x - 4
f(x) + 4 = x² - 10x

- 10x / 2 = - 5x

- 5² = 25

f(x) + 4 + 25 = (x² - 10x + 25)
f(x) + 29 = (x-5)²
f(x) = (x-5)² - 29

D. 25

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