PLEASE answer

Getting the Square:


[tex]( {x}^{2} {y}^{3} {)}^{2} = {x}^{4} {y}^{6} [/tex]
Getting square root:

[tex] \sqrt{ {x}^{4} {y}^{6} } = x \frac{4}{2} y \frac{6}{2} = {x}^{2} {y}^{3} [/tex]
Why do we divide the exponents by two when obtaining the square root of
[tex] {x}^{4} {y}^{6} [/tex]
?​