   Chapter 2.3, Problem 30E

Chapter
Section
Textbook Problem

Multiply: ( + 4 ) ( + 7 )

To determine

To calculate: The value of the numbers (+4)(+7).

Explanation

Given Information:

The numbers are (+4)(+7).

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.

(+4)(+7)

Observe that both the numbers have similar sign

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