Answer
4$x^{2}$+12x+9
Work Step by Step
Given$(2x+3)^{2}$
Use the formula: $(a+b)^{2}$=$a^{2}$+2ab+$b^{2}$
Plug in values: $(2x)^{2}$+2(2x)(3)+$(3)^{2}$
Simplify: 4$x^{2}$+12x+9
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 - 8-4 Multiplying Soecial Cases - Lesson Check - Page 507: 4
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