SOLUTION: Hi Can I have some help evaluating this function? Use the function to evaluate the indicated expressions and simplify. f(x) = -2x^2 + 7 f(x + 2) = f(x) + f(2) =

Question 126005: Hi Can I have some help evaluating this function?
Use the function to evaluate the indicated expressions and simplify.
f(x) = -2x^2 + 7
f(x + 2) =
f(x) + f(2) =
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given function

Replace each x with

Foil

Distribute

Combine like terms

-------------------------------------------------

Start with the given function

Plug in

Raise 2 to the 2nd power to get 4

Multiply -2 and 4 to get -8

Add -8 and 7 to get -1

Now add f(2) to f(x) to get

Combine like terms
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