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Find f(-5), if f(x) = -x^2 - 2x+1

Find f(-5), if f(x) = -x^2 - 2x+1
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1 vote
Find f(-5), if f(x) = -x^2 - 2x+1

User Hdnn
by
7.7k points

2 Answers

1 vote
f(x) = -x² - 2x + 1

f(-5) = -(-5)² - 2(-5) + 1

f(-5) = -25 + 10 + 1

f(-5) = -15 + 1

f(-5) = -14

-14 <----- answer
User Tim Molendijk
by
8.3k points
2 votes
Simple as subbin' in -5 for x.
f(-5) = -(-5)² - 2(-5) + 1
= -25 + 10 + 1
= -14
User Rmacqueen
by
7.6k points
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