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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset 91影视 Explanations$ Math

2nd Edition 路 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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Simplify:

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