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Big Ideas Math Algebra 1 A Bridge to Success

BI

Big Ideas Math Algebra 1 A Bridge to Success View details

Maintaining Mathematical Proficiency

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Exercise 1 Page 541

Pay close attention to the order of operations.

45

We want to evaluate the given expression.

7sqrt(25) + 10 According to the order of operations, we have to evaluate the square root first, the multiplication next, and finally the addition.

Operation	Before Simplification	After Simplification
Calculate root	7 sqrt(25) + 10	7 ( 5) +10
Multiply	7 ( 5) + 10	35 + 10
Add terms	35+ 10	45

The expression equals 45.

Alternative Solution

Using a Calculator

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

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