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

if f(-x) I got 2x+2 what did I do wrong? What is -x ^2?

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- Sep 30th 2008, 09:42 AM #1

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- Sep 30th 2008, 09:53 AM #2

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- Sep 30th 2008, 01:53 PM #3

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- Sep 30th 2008, 01:57 PM #4