Question

What is a square root

Answer 1

It is quite hard to define it but I believe a square root is a number that can be multiplied by itself to give the original number.

2 x 2 = 4 so the square root of 4 is 2

3 x 3 = 9 so the square root of 9 is 3

So a number which is squared produces another number which can be square rooted to get the original number.

Answer 2

There are many kinds of roots
square root
cube root
4th root
5th root
etc

square=2D so it means 2 identical numbers that multiply to get that number so exg
√4=2 or -2 because 2 times 2=4 and -2 times -2=4

cube root=3 identical number that multiply to get that number exg
∛27=3  or -3 because 3 times 3 times 3=27 and -3 times -3 times 3=27

then 4th root=4 number
5th root=5 numbers and so on