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Evaluate the expression f(x) = 3x^2 - 9 if f (-3)

User Wyj
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1 Answer

3 votes

Answer:

18

Explanation:

Substitute in -3 into all the x values of f(x)

f(-3) = 3(-3)^2 - 9

f(-3) = 3(9) - 9

f(-3) = 27 - 9

f(-3) = 18

Hope this helps :)

User Nvrandow
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