SOLUTION: If f(f(x)=x2+2 ; f (6) = ?

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Question 1068853: If f(f(x)=x2+2 ; f (6) = ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Is that a typo or did you mean to write,
f%5E2=x%5E2%2B2?
If so,
f%28x%29=sqrt%28x%5E2%2B2%29
f%286%29=sqrt%286%5E2%2B2%29
f%286%29=sqrt%2838%29 or f%286%29=-sqrt%2838%29
.
.
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If it was a typo,
f%28x%29=x%5E2%2B2
f%286%29=6%5E2%2B2
f%286%29=38