Answer
8$x^{2}$+4x+5
Work Step by Step
Given: (5$x^{2}$+4x-2)+(3$x^{2}$+7)
Simplify parenthesis: 5$x^{2}$+4x-2+3$x^{2}$+7
Combine like terms: (5$x^{2}$+3$x^{2}$)+4x+(-2+7)
Simplify: 8$x^{2}$+4x+5
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - 8-2 Multiplying and Factoring - Practice and Problem-Solving Exercises - Page 496: 49
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