### Theory:

The square root of a number:

The square root of a given positive real number is defined as the number multiplied with itself, results in the given number.
Example:
The square root of $$64$$ is $$8$$.

That is, $$\sqrt{64} = \sqrt{8 \times 8} = \sqrt{8^2} = 8$$
The square root of a polynomial:

The square root of a polynomial $$p(x)$$ is defined as an expression $$q(x)$$, when multiplied with itself, results in the given number $$p(x)$$.

That is, $$p(x) = q(x) \times q(x)$$
So, $$\sqrt{p(x)} = |q(x)|$$ where $$|q(x)|$$ is the absolute of $$q(x)$$.

The square root of a polynomial can be determined using two methods.

They are:

1. Factorization method

2. Long division method