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Chapter 1: Q13. (page 30)

Evaluate the following expression and name the property used in each step:

8鈭�23+21

Short Answer

Expert verified

The value of the expression is:8鈭�23+21=21

Step by step solution

01

Step 1. Given information.

The given expression is:

8鈭�23+21

02

Step 2. Write the concept.

The substitution property for multiplication, addition and subtraction is:

a鈰�b=ca梅b=ca卤b=c

The property of additive inverse is:

a+鈭�a=0

And use the formula such that a3=a脳a脳a.

03

Step 3. Evaluate the expression.

The expression can be written as in below:

8鈭�23+21=8鈭�8+21=8+鈭�8+21鈥夆赌夆赌夆赌夆赌夆赌夆赌夆赌夆赌夆赌夆赌�笔谤辞辫别谤迟测鈥夆赌塷蹿鈥夆赌碱诲诲颈迟颈惫别鈥夆赌塈苍惫别谤蝉别=0+21鈥夆赌夆赌夆赌夆赌夆赌夆赌夆赌夆赌�厂耻产蝉迟颈迟耻迟颈辞苍鈥夆赌塒谤辞辫别谤迟测=21

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Most popular questions from this chapter

Write an algebraic expression for each verbal expression.

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