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# Hellp

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If $f(x) = 3x^2 - 5$, what is the value of $f(f(-1))$?

Sep 19, 2020

#1
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If f(x) = 3x^2 - 5, what is the value of f(f(-1))?

Hello Guest!

$$f(x) = 3x^2 - 5\\ f(-1)=3\cdot (-1)^2-5$$

$$f(-1)=-2$$

$$f(f(-1))=f(-2)=3\cdot (-2)^2-5$$

$$f(f(-1))=7$$

!

Sep 19, 2020