Verified Answer :

AL2006

The square root of 144 = +12 and -12.

TSO

\(\sqrt{144} = \sqrt{12\times 12} = \sqrt{12^2} = (12^2)^{\frac{1}{2}} = 12^{\frac{2}{2}} = 12^1 = \huge{\boxed{12}}\)

Answer is 12.

Also note that -12 x -12 = 144

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