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If f(x) = 2(x²+5), then f(-3) =_.
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If f(x) = 2(x²+5), then f(-3) =_.

User Miroslav Nedyalkov
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1 Answer

1 vote

Given


f(x)=2(x^2+5)

Set x=-3 and solve for f(-3), as shown below


\Rightarrow f(-3)=2(-3^2+5)=2(9+5)=2(14)=28

The answer is f(-3)=28

User RDL
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