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creativ13 [48]
2 years ago
7

HELP !!! Evaluate f(-2) for the function f(x) = 3x2 + 2x - 5

Mathematics
1 answer:
Phoenix [80]2 years ago
4 0

Answer:

3

Step-by-step explanation:

So we have the function:

f(x)=3x^2+2x-5

To evaluate the value of f(-2), substitute -2 for x. Thus:

f(-2)=3(-2)^2+2(-2)-5

Square first:

f(-2)=3(4)+2(-2)-5

Multiply:

f(-2)=12-4-5

Now, subtract:

f(-2)=8-5=3

So:

f(-2)=3

And we're done!

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