## College Algebra 7th Edition

Published by Brooks Cole

# Chapter P, Prerequisites - Section P.5 - Algebraic Expressions - P.5 Exercises: 79

#### Answer

a-b$^2$

#### Work Step by Step

(A+B)(A-B)=A$^2$-B$^2$ ($\sqrt a$-b)($\sqrt a$+b) ($\sqrt a$)$^2$-(b)$^2$ a-b$^2$

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