Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.4 - Polynomials - Exercise Set - Page 57: 103

Answer

makes sense.

Work Step by Step

Using the exponential properties $(ab)^n=a^nb^n$, we have $(3x^2y)^2=9x^4y^2$. However, $(3x^2+y)^2=9x^4+6x^2y+y^2\ne9x^4y^2$. Thus, the statement makes sense.
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