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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

Chapter Review

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Exercise 23 Page 69

Pay close attention to the order of operations.

9.8

Practice makes perfect

According to the order of operations, exponents are calculated before division. For the given expression, this means evaluating the power first.

Operation	Before Simplification	After Simplification
Calculate power	7^2÷ 5	49÷ 5
Calculate quotient	49÷ 5	9.8

The expression equals 9.8.

Alternative Solution

Using a Calculator

We can also evaluate this expression using a calculator. To do so, type it as shown below.

Subchapter links

Exercises p.68-72