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April 23, 2014

April 23, 2014

Posted by **Katie** on Tuesday, August 30, 2011 at 10:46pm.

f(x) = (5 - x)²

Find f(2) and f(-2)

I end up with 24 on both equations

- Math -
**MathMate**, Tuesday, August 30, 2011 at 10:54pm24 cannot be right, since f(x) is a perfect square if x is an integer.

f(2)=(5-2)²=?

f(-2)=(5-(-2))²=(7)²=?

- Math -
**Reiny**, Tuesday, August 30, 2011 at 10:54pmYour answer of 24 is incorrect for both cases

f(x) = (5-x)^2

f(2) = (5-2)^2 = 3^2 = 9

f(-2) = (5-(-2))^2 = 7^2 = 49

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