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Mathematics 11 Online
OpenStudy (anonymous):

solve: square root (x-2)=8-x

OpenStudy (tkhunny):

#1 \[x-2 \ge 0\] Why?

OpenStudy (anonymous):

how is it x-2 is greater than or equal to 0

OpenStudy (tkhunny):

That's just #1. It is something to think BEFORE you start trying to solve anything. AFTER you think that, go ahead and square both sides.

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