BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.1, Problem 19E
To determine

To rewrite: the givenexpression by using properties of real numbers.

Expert Solution

Answer to Problem 19E

Using Distributive property over addition of real numbers the expression can be written as 3x+3y .

Explanation of Solution

Given information:

An expression is given as

  3(x+y)

Concept used:

Distributive property over addition of real numbers:

Suppose a , b, and c are three real numbers, Distributive property says that

  a(b+c)=ab+ac

Product of a number with a sum can be changed to sum of products.

Calculation:

Consider the expression and simplify as shown:

  3(x+y)=3x+3y

Therefore, 3(x+y) , can be written by using Distributive property over addition of real numbers, as 3x+3y .

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