College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.4: 43



Work Step by Step

$$(2x+3)^2$$ $$=(2x+3)(2x+3)$$ $$=(2x\times 2x)+(2x\times 3)+(3\times 2x)+(3\times 3)$$ $$=4x^2+6x+6x+9$$ $$=4x^2+12x+9$$
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