Simplify the expression below 8x2 + 18x + 9 4x2 – 9

PREALGEBRA
15th Edition
ISBN:9781938168994
Author:OpenStax
Publisher:OpenStax
Chapter2: The Language Of Algebra
Section2.2: Evaluate, Simplify, And Translate Expressions
Problem 2.39TI: Identify the like terms in the list or the expression: 9,2x2,y2,8x3,15,9x,11y2
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Simplify the expression below
8x2 + 18x + 9
4x2 – 9
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