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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset Vaia Explanations$ Math

2nd Edition · 1240 pages

ISBN: 9780998625713

Chapter 1: Q 1.47. (page 33)

Simplify: $3 x^{2} + 7 x + 9 + 7 x^{2} + 9 x + 8$

Short Answer

Expert verified

The simplified expression is $10 x^{2} + 16 x + 17$ .

Step by step solution

01

Step 1. Given information.

The given expression is:

$3 x^{2} + 7 x + 9 + 7 x^{2} + 9 x + 8$

02

Step 2. Identify the like terms and rearrange the expression so the like terms are together.

$3 x^{2} + 7 x + 9 + 7 x^{2} + 9 x + 8$

write like terms together,

$3 x^{2} + 7 x^{2} + 7 x + 9 x + 9 + 8$

Now combine the like terms,

$10 x^{2} + 16 x + 17$

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Most popular questions from this chapter

In the following exercise, simplify the expression: $52 \div (- 4) + (- 32) \div (- 8)$

Translate from Algebra to English.

$x + 11$

1.2. Use the Language of Algebra

Identify the like terms:

$9, 2 x^{3}, y^{2}, 8 x^{3}, 15, 9 y, 11 y^{2}$

In the following exercise, divide: $- 52 \div (- 4)$

See all solutions

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