Explanation Given information: The rational expression f ( x ) = x 3 + 2 x 2 + 8 x Concept Used: The domain of a rational expression is a set of input or argument values for which the function is defined. Calculation: To determine the domain of f ( x ) = x 3 + 2 x 2 + 8 x , we have to look for the points where this expression is defined. According to definition of a rational expression an rational expression is defined where the polynomial of denominator is not equals to zero. i.e. where in f ( x ) = P Q Q ≠ 0 , there f ( x ) is defined As in f ( x ) = x 3 + 2 x 2 + 8 x Let’s find out the poin

15th Edition

ISBN: 9780321978929

Author: Martin-Gay

Publisher: PEARSON

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Chapter 14, Problem 5R

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The domain of given rational expression

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The domain of given rational expression

Solution Summary: The author explains that a rational expression is defined where the polynomial of denominator is not equal to zero.

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