Question

Given that f(x) = x² + 4x, evaluate f(-2).

Answer 1

F(-2)=-4
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Answer 2

The evaluation is
`f(-2)=-4`

Explanation:

We were given an explicit function of x, wich has the form

`f(x)=x^2+4x`

The problem ask to evaluate f(-2), this means to put the value x=-2 into the function, so

`f(-2)=(-2)^2+4(-2)=4-8=-4`

Therefore, the answer is

`f(-2)=-4`