SOLUTION: Given f(x) = 5x² - 3x + 1, find f(-2)

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Question 71815: Given f(x) = 5x² - 3x + 1, find f(-2)
Answer by bucky(2189) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29+=+5x%5E2+-+3x+%2B1
.
"Find f(-2)" just tells you to go to f(x) and substitute (-2) for every x. When you do you
get:
.
f%28-2%29+=+5%28-2%29%5E2+-+3%28-2%29+%2B+1
.
This reduces to:
.
f%28-2%29+=+%285%2A4%29-+%28-6%29+%2B+1
.
f%28-2%29+=+20+%2B+6+%2B+1
.
f%28-2%29+=+27
.
That's all there is to it. Hope this helps you with other problems of this type.