SOLUTION: If I have the absolute value of x^2-9 is equal to 16, then what does "x" equal?

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Question 672491: If I have the absolute value of x^2-9 is equal to 16, then what does "x" equal?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You don't have to worry about negative values
inside the absolute value because the expression
can never be more negative than +-9+
So I can say
+x%5E2+-+9+=+16++
+x%5E2+=+25+
+x+=+5+
+x+=+-5+
either value for x works