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Mathematics 11 Online
OpenStudy (anonymous):

Given that f(x) = x² + 4x, evaluate f(-2). a. -4 b. -8 c. -12

OpenStudy (phi):

f(-2) means replace x with -2 in the expression, then do the arithmetic. can you do that?

OpenStudy (anonymous):

Is it -4?

OpenStudy (phi):

how did you get it?

OpenStudy (anonymous):

I just want to know if I have the correct answer.

OpenStudy (phi):

I just want to know how you got it

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