SImplify. The square root of 63
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The goal is to to see what multiples of 63 has perfect squares in them
63 is not a perfect square
1 x 63 (still equal 63 is not a perfect square)
3 x 21 (there is not a perfect square)
7 x 9 (ahhhh ha! a perfect square is involved...since 3 x 3=9)
Therefore, this is the simplified expression.
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