The answer is: 12.
Squaring means elevating the number by two, it means that the number will be mulitplied by itself two times. On the opposite, the square root of a number is the number that squared or elevated by two gives as result that number.
We must remember that:
[tex]\sqrt[n]{a^{m} }=a^{\frac{m}{n} }\\\\\sqrt{a}=a^{\frac{1}{2}}[/tex]
and,
[tex]\sqrt{a^{2} }=a^{\frac{2}{2}}=a[/tex]
Then, the square root of 12 square is:
[tex]\sqrt{12^{2} }=12^{\frac{2}{2}}=12^{1}=12[/tex]
Hence, the square root of 12 squared, is 12.
Have a nice day!
