   Chapter 2.3, Problem 7E

Chapter
Section
Textbook Problem

Multiply: ( − 3 ) ( − 9 )

To determine

To calculate: The value of the numbers (3)(9).

Explanation

Given Information:

The numbers are (3)(9).

Formula used:

The steps for the multiplication of two signed numbers are shown as below:

Step 1: Multiply the absolute value of two numbers by placing a positive sign, just before the product, if the numbers have same sign.

Step 2: Multiply the absolute value of two numbers by placing a negative sign, just before the product, if the numbers have different sign.

Calculation:

Recall the provided numbers.

(3)(9)

Observe that both the numbers has same sign

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