domain of  a.radical(5-x) - radical(x2-9) b. radical(-x3+5x2+9x-45)

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
ChapterP: Prerequisites
SectionP.7: Rational Expressions
Problem 8E
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domain of  a.radical(5-x) - radical(x2-9)

b. radical(-x3+5x2+9x-45)

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