Evaluate each expression. See Example 1. Reference Example 1 Eva...

Evaluate each expression. See Example 1.

Reference Example 1

Evaluate:

Strategy We will scan the expression to determine what operations need to be performed. Then we will perform those operations, one at a time, following the order of operations rule.

Why Every numerical expression has only one correct value. If we don’t follow the correct order of operations, the expression can have more than one value.

Solution

Since the expression does not contain any parentheses, we begin with Step 2 of the order of operations rule: Evaluate all exponential expressions. We will write the steps of the solution in horizontal form.