   Chapter 2.4, Problem 19E

Chapter
Section
Textbook Problem

Perform the indicated operations and simplify: ( − 3 1 3 ) ( − 1 4 5 )

To determine

To calculate: The simplified form of the expression (313)(145) by performing the indicated operation.

Explanation

Given Information:

The provided expression is:

(313)(145).

Formula used:

Multiplying two signed numbers includes:

Step 1. In order to multiply two numbers having same sign, their absolute values must be multiplied. With this a positive result will be obtained.

Step 2. And in order to multiply two numbers with different signs, their absolute values must be multiplied and before the product a negative sign must be placed.

Calculation:

Consider the expression:

(313)(145)

First, change the mixed number to fraction.

(313)(145)=(103)(95)

Since, the two fractions have same sign, their absolute values must be multiplied and before the product a positive sign must be placed

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