# How do you simplify #a * a#?

##### 1 Answer

Jul 26, 2016

#### Explanation:

We don't know what

Anything multiplied by itself can be written as itself "squared", or to the second power. For example:

The same concept can be applied to variables multiplied by themselves three, four, five, or more times.

The number which is written above the bigger number is known as the **exponent**. This lets you know how many times to multiply this number by itself. The bigger number is the base; the number that is multiplied by itself a number of times.

For your question: