SOLUTION: F(-2), for f(r)=5r^2 + 3 please help

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Question 386870: F(-2), for f(r)=5r^2 + 3 please help
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Just plug in r = -2
f(-2) = 5(-2)^2 + 3 = 20 + 3 = 23