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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

2. Solving Inequalities Using Addition or Subtraction

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Exercise 88 Page 177

According to the order of operations, we should calculate expressions inside parentheses first.

-1

Practice makes perfect

According to the order of operations, expressions inside parentheses are calculated first. Therefore, before multiplying by 3, we must calculate exponents. Finally, we will subtract 4 from this expression.

3(4-5)^2-4

Subtract term

3(-1)^2-4

Calculate power

3(1)-4

Multiply

3-4

Subtract term

-1

The expression evaluates to be -1. Using the calculator, we should write it as shown below.

Subchapter links

Lesson Check p.174

Practice and Problem-Solving Exercises p.174-177

Standardized Test Prep p.177

Mixed Review p.177