What is a radical?

What is a mixed radical?
What is a square root?
What is a perfect sqaure?

1 answer

A radical is a number under a "root" sign. It can be a square root or some other higher root such as cube root.

A mixed root is the product of and integer and a radical

The square root of a number (A) is the number B such that, when B is multiplied by itself, yields the number A

A perfect square (in number theory) can be expressed as the producy of the same integer times itself. 25 = 5 x 5 is an example.