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18. Let f(x)=x²+2x+c For what values of care the roots of f(x) not real? c<_1 c<1 c1 c>1

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asked Oct 2, 2021 234k views

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18. Let f(x)=x²+2x+c

For what values of care the roots of f(x) not real?
c<_1
c<1
c1
c>1

Mathematics
high-school

Craig Sefton asked

by Craig Sefton

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1 Answer

4 votes

Answer:c<1

Explanation:

Ashley Baldry answered Oct 8, 2021

by Ashley Baldry

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18. Let f(x)=x²+2x+c For what values of care the roots of f(x) not real? c<_1 c<1 c1 c>1

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