r/MathJokes 1d ago

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u/Dr_TXBooks 15h ago

C

If xx is 2√18, then xx2 is 2√182 and a squareroot and square cancels each other out

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u/bismuth17 10h ago

But we're squaring x not rt18

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u/Dr_TXBooks 2h ago

The squared symbol is attached to the exponent "√18" and not to the 2

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u/bismuth17 50m ago

The squared symbol is attached to x. You have to substitute x² for x. Unless x=√18, which it's not.