Question

Can some please explain how to do this ?

Answer 1

Answer:

$4^{2} = 4 x 4 =16$

Step-by-step explanation:

First of all we need to understand what a perfect square is:

It is an integer which is the square of another integer integer; in other words, it is the product of some integer with itself.

For example: 9, this is a square number since itt equals $3^{2}$ and 3x3 = 9

Answer 2

4x4= 16 when a number is squared like, in this case, 4, you multiple it twice. for instance, 8 squared would be 8x8. it applies to all numbers.