Using the completing-the-square method, rewrite f(x) = x^2 + 10x + 7 in vertex form. Answers provided f(x) = (x + 5)^2 − 18 f(x) = (x + 10)^2 + 25 f(x) = (x + 5)^2 + 7 f(x) = (x + 5)^2

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asked Oct 20, 2019 214k views

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Using the completing-the-square method, rewrite f(x) = x^2 + 10x + 7 in vertex form.

Answers provided
f(x) = (x + 5)^2 − 18
f(x) = (x + 10)^2 + 25
f(x) = (x + 5)^2 + 7
f(x) = (x + 5)^2

Mathematics
middle-school

Josefine asked

by Josefine

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2 Answers

4 votes

Answer:

f(x) = (x + 5)^2 − 18

Explanation:

ERIZ answered Oct 21, 2019

by ERIZ

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3 votes

$f(x) = x^2 + 10x + 7 \\\\ f(x)=x^2+10x+25-18\\\\ f(x)=(x+5)^2-18$

David Csonka answered Oct 26, 2019

by David Csonka

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