7th Edition

ISBN: 9781133281450

Author: John C. Peterson, Robert D. Smith

Publisher: Cengage Learning

Concept explainers

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.

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Textbook Question

Chapter 39, Problem 39A

Add the following expressions.

( 3 x y 2 + x 2 y − x 2 y 2 ) , ( 2 x 2 y − x 2 y 2 )

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Chapter 39, Problem 38A

Chapter 39, Problem 40A

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Chapter 39 Solutions

Mathematics for Machine Technology

Ch. 39 - Prob. 1A Ch. 39 - Prob. 2A Ch. 39 - Use the Table of Block Thicknesses for a Customary...Ch. 39 - Prob. 4A Ch. 39 - Prob. 5A Ch. 39 - Prob. 6A Ch. 39 - Add the terms in the following expressions. 18y+y Ch. 39 - Add the terms in the following expressions....Ch. 39 - Add the terms in the following expressions....Ch. 39 - Add the terms in the following expressions....

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Add the following expressions. ( 3 x y 2 + x 2 y − x 2 y 2 ) , ( 2 x 2 y − x 2 y 2 )

Solution Summary: The author explains that the sum of the terms given is equal to lRightarrow.

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Chapter 39 Solutions