SOLUTION: find the function value f(x) =x^2-5x-2 find f(-2)

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Question 186991: find the function value
f(x) =x^2-5x-2
find f(-2)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=x%5E2-5x-2 Start with the given equation.


f%28-2%29+=%28-2%29%5E2-5%28-2%29-2 Plug in x=-2.


f%28-2%29=1%284%29-5%28-2%29-2 Square -2 to get 4.


f%28-2%29=4-5%28-2%29-2 Multiply 1 and 4 to get 4.


f%28-2%29=4%2B10-2 Multiply -5 and -2 to get 10.


f%28-2%29=12 Combine like terms.