# How do you write the expression #r*r*r*r# using exponents?

##### 3 Answers

Jan 8, 2017

Jun 13, 2017

Jul 16, 2017

#### Explanation:

The short way to write repeated addition is multiplication.

Multiplication is a stronger operation than addition.

In a similar way, the short way to write repeated multiplication is using indices or exponents.

Note the difference between

And

Indices are stronger than multiplication, which is why in an expression with mixed operations, the order is:

powers and roots

multiply and divide

addition and subtraction