Explanation The given rational expression is 5 x + 2 x 2 + 12 x + 20 . The rational expression is undefined when the denominator is 0. Set the denominator of the function equal to zero that is x 2 + 12 x + 20 and solve for x . x 2 + 12 x + 20 = 0 ( x + 10 ) ( x + 2 ) = 0 x = 10 and x = − 2 Substitute x = − 10 in the rational expression 5 x + 2 x 2 + 12 x + 20 . 5 x + 2 x 2 + 12 x + 20 = 5 ( − 10 ) + 2 ( − 10 ) 2 + 12 ( − 10 ) + 20 = − 50 + 2 100 − 120 + 20 = − 48 0 = ∞ Hence, the rational expression becomes undefined for x = − 10

4th Edition

ISBN: 9780134556079

Author: Sullivan, Michael, III, Struve, Katherine R., Mazzarella, Janet.

Publisher: Pearson,

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Question

Chapter 7, Problem 9RE

To determine

To find: The values of x in the rational expression 5x+2x2+12x+20 for which it is undefined.

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Chapter 7, Problem 8RE

Chapter 7, Problem 10RE

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Chapter 7 Solutions

Elementary & Intermediate Algebra

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See...Ch. 7.8 - Prob. 24E Ch. 7.8 - Prob. 25E Ch. 7.8 - Prob. 26E Ch. 7.8 - Prob. 27E Ch. 7.8 - Prob. 28E Ch. 7.8 - Prob. 29E Ch. 7.8 - Prob. 30E Ch. 7.8 - Prob. 31E Ch. 7.8 - Prob. 32E Ch. 7.8 - Prob. 33E Ch. 7.8 - Prob. 34E Ch. 7.8 - Prob. 35E Ch. 7.8 - Prob. 36E Ch. 7.8 - Prob. 37E Ch. 7.8 - Prob. 38E Ch. 7.8 - Prob. 39E Ch. 7.8 - Prob. 40E Ch. 7.8 - In Problems 41-44, write an algebraic expression...Ch. 7.8 - Prob. 42E Ch. 7.8 - Prob. 43E Ch. 7.8 - Prob. 44E Ch. 7.8 - Prob. 45E Ch. 7.8 - Prob. 46E Ch. 7.8 - Prob. 47E Ch. 7.8 - Prob. 48E Ch. 7.8 - Prob. 49E Ch. 7.8 - Prob. 50E Ch. 7.8 - Prob. 51E Ch. 7.8 - Prob. 52E Ch. 7.8 - Prob. 53E Ch. 7.8 - Prob. 54E Ch. 7.8 - Prob. 55E Ch. 7.8 - Prob. 56E Ch. 7.8 - Prob. 57E Ch. 7.8 - Prob. 58E Ch. 7.8 - Prob. 59E Ch. 7.8 - Prob. 60E Ch. 7.8 - Prob. 61E Ch. 7.8 - Prob. 62E Ch. 7.8 - Prob. 63E Ch. 7.8 - Prob. 64E Ch. 7.8 - Prob. 65E Ch. 7.8 - Prob. 66E Ch. 7.8 - Prob. 67E Ch. 7.8 - Prob. 68E Ch. 7.8 - Prob. 69E Ch. 7.8 - Prob. 70E Ch. 7.8 - Prob. 71E Ch. 7.8 - Prob. 72E Ch. 7.8 - Prob. 73E Ch. 7.8 - Prob. 74E Ch. 7.8 - Prob. 75E Ch. 7.8 - Prob. 76E Ch. 7.8 - Prob. 77E Ch. 7.8 - Prob. 78E Ch. 7.8 - Prob. 79E Ch. 7.8 - Prob. 80E Ch. 7.8 - Prob. 81E Ch. 7.8 - Prob. 82E Ch. 7.8 - Prob. 83E Ch. 7.8 - Prob. 84E Ch. 7.8 - Prob. 85E Ch. 7.8 - Prob. 86E Ch. 7.8 - Prob. 87E Ch. 7.8 - Prob. 88E Ch. 7.8 - A student reads the following sentence from a word...Ch. 7.8 - When modeling work problems, we assume that...Ch. 7.8 - Prob. 91E Ch. 7.8 - Explain why the following proportions all yield...Ch. 7 - Evaluate a3b3a+b when a = 2 and b = 3.Ch. 7 - Prob. 2PCT Ch. 7 - Prob. 3PCT Ch. 7 - Prob. 4PCT Ch. 7 - Prob. 5PCT Ch. 7 - Prob. 6PCT Ch. 7 - Prob. 7PCT Ch. 7 - Prob. 8PCT Ch. 7 - Prob. 9PCT Ch. 7 - Prob. 10PCT Ch. 7 - Prob. 11PCT Ch. 7 - Prob. 12PCT Ch. 7 - Prob. 13PCT Ch. 7 - Prob. 14PCT Ch. 7 - Prob. 15PCT Ch. 7 - Prob. 1RE Ch. 7 - Prob. 2RE Ch. 7 - Prob. 3RE Ch. 7 - Prob. 4RE Ch. 7 - Prob. 5RE Ch. 7 - Prob. 6RE Ch. 7 - Prob. 7RE Ch. 7 - Prob. 8RE Ch. 7 - Prob. 9RE Ch. 7 - Prob. 10RE Ch. 7 - Prob. 11RE Ch. 7 - Prob. 12RE Ch. 7 - Prob. 13RE Ch. 7 - Prob. 14RE Ch. 7 - Prob. 15RE Ch. 7 - Prob. 16RE Ch. 7 - Prob. 17RE Ch. 7 - Prob. 18RE Ch. 7 - Prob. 19RE Ch. 7 - Prob. 20RE Ch. 7 - Prob. 21RE Ch. 7 - Prob. 22RE Ch. 7 - Prob. 23RE Ch. 7 - Prob. 24RE Ch. 7 - Prob. 25RE Ch. 7 - Prob. 26RE Ch. 7 - Prob. 27RE Ch. 7 - Prob. 28RE Ch. 7 - Prob. 29RE Ch. 7 - Prob. 30RE Ch. 7 - Prob. 31RE Ch. 7 - Prob. 32RE Ch. 7 - Prob. 33RE Ch. 7 - Prob. 34RE Ch. 7 - Prob. 35RE Ch. 7 - Prob. 36RE Ch. 7 - Prob. 37RE Ch. 7 - Prob. 38RE Ch. 7 - Prob. 39RE Ch. 7 - Prob. 40RE Ch. 7 - Prob. 41RE Ch. 7 - Prob. 42RE Ch. 7 - Prob. 43RE Ch. 7 - Prob. 44RE Ch. 7 - Prob. 45RE Ch. 7 - Prob. 46RE Ch. 7 - Prob. 47RE Ch. 7 - Prob. 48RE Ch. 7 - Prob. 49RE Ch. 7 - Prob. 50RE Ch. 7 - Prob. 51RE Ch. 7 - Prob. 52RE Ch. 7 - Prob. 53RE Ch. 7 - Prob. 54RE Ch. 7 - Prob. 55RE Ch. 7 - Prob. 56RE Ch. 7 - Prob. 57RE Ch. 7 - Prob. 58RE Ch. 7 - Prob. 59RE Ch. 7 - In Problems 5972, perform the indicated...Ch. 7 - Prob. 61RE Ch. 7 - Prob. 62RE Ch. 7 - Prob. 63RE Ch. 7 - Prob. 64RE Ch. 7 - Prob. 65RE Ch. 7 - Prob. 66RE Ch. 7 - Prob. 67RE Ch. 7 - Prob. 68RE Ch. 7 - Prob. 69RE Ch. 7 - Prob. 70RE Ch. 7 - Prob. 71RE Ch. 7 - Prob. 72RE Ch. 7 - Prob. 73RE Ch. 7 - Prob. 74RE Ch. 7 - Prob. 75RE Ch. 7 - Prob. 76RE Ch. 7 - Prob. 77RE Ch. 7 - Prob. 78RE Ch. 7 - Prob. 79RE Ch. 7 - Prob. 80RE Ch. 7 - Prob. 81RE Ch. 7 - Prob. 82RE Ch. 7 - Prob. 83RE Ch. 7 - Prob. 84RE Ch. 7 - Prob. 85RE Ch. 7 - Prob. 86RE Ch. 7 - Prob. 87RE Ch. 7 - Prob. 88RE Ch. 7 - Prob. 89RE Ch. 7 - Prob. 90RE Ch. 7 - Prob. 91RE Ch. 7 - Prob. 92RE Ch. 7 - Prob. 93RE Ch. 7 - Prob. 94RE Ch. 7 - Prob. 95RE Ch. 7 - Prob. 96RE Ch. 7 - Prob. 97RE Ch. 7 - Prob. 98RE Ch. 7 - Prob. 99RE Ch. 7 - Prob. 100RE Ch. 7 - Prob. 101RE Ch. 7 - Prob. 102RE Ch. 7 - Prob. 103RE Ch. 7 - Prob. 104RE Ch. 7 - Prob. 105RE Ch. 7 - Prob. 106RE Ch. 7 - Prob. 107RE Ch. 7 - Prob. 108RE Ch. 7 - Prob. 109RE Ch. 7 - Prob. 110RE Ch. 7 - Prob. 111RE Ch. 7 - Prob. 112RE Ch. 7 - Prob. 1T Ch. 7 - Prob. 2T Ch. 7 - Prob. 3T Ch. 7 - Prob. 4T Ch. 7 - Prob. 5T Ch. 7 - Prob. 6T Ch. 7 - Prob. 7T Ch. 7 - Prob. 8T Ch. 7 - Prob. 9T Ch. 7 - Prob. 10T Ch. 7 - Prob. 11T Ch. 7 - Prob. 12T Ch. 7 - Prob. 13T Ch. 7 - Prob. 14T Ch. 7 - Prob. 15T Ch. 7 - Prob. 16T Ch. 7 - Prob. 17T Ch. 7 - Prob. 18T Ch. 7 - Prob. 19T Ch. 7 - Prob. 20T Ch. 7 - Prob. 1CUR Ch. 7 - Prob. 2CUR Ch. 7 - Prob. 3CUR Ch. 7 - Prob. 4CUR Ch. 7 - Prob. 5CUR Ch. 7 - Prob. 6CUR Ch. 7 - Prob. 7CUR Ch. 7 - Prob. 8CUR Ch. 7 - Prob. 9CUR Ch. 7 - Prob. 10CUR Ch. 7 - Prob. 11CUR Ch. 7 - Prob. 12CUR Ch. 7 - Solve the equation using the Zero-Product...Ch. 7 - Prob. 14CUR Ch. 7 - Prob. 15CUR Ch. 7 - Prob. 16CUR Ch. 7 - Prob. 17CUR Ch. 7 - Prob. 18CUR Ch. 7 - Prob. 19CUR Ch. 7 - Prob. 20CUR Ch. 7 - Prob. 21CUR Ch. 7 - Prob. 22CUR Ch. 7 - Prob. 23CUR Ch. 7 - Prob. 24CUR Ch. 7 - Prob. 25CUR Ch. 7 - Prob. 26CUR Ch. 7 - Prob. 27CUR Ch. 7 - Prob. 28CUR Ch. 7 - Prob. 29CUR Ch. 7 - Prob. 30CUR Ch. 7 - Prob. 1IA Ch. 7 - Prob. 2IA Ch. 7 - Prob. 3IA Ch. 7 - Prob. 4IA Ch. 7 - Prob. 5IA Ch. 7 - Prob. 6IA Ch. 7 - Prob. 7IA Ch. 7 - Prob. 8IA Ch. 7 - Prob. 9IA Ch. 7 - Prob. 10IA Ch. 7 - Prob. 11IA Ch. 7 - Prob. 12IA Ch. 7 - Prob. 13IA Ch. 7 - Prob. 14IA Ch. 7 - Prob. 15IA Ch. 7 - Prob. 16IA Ch. 7 - Prob. 17IA Ch. 7 - Prob. 18IA Ch. 7 - Prob. 19IA Ch. 7 - Prob. 20IA Ch. 7 - Prob. 21IA Ch. 7 - Prob. 22IA Ch. 7 - Prob. 23IA Ch. 7 - Prob. 24IA Ch. 7 - Prob. 25IA Ch. 7 - Prob. 26IA Ch. 7 - Prob. 27IA Ch. 7 - Prob. 28IA Ch. 7 - Prob. 29IA Ch. 7 - Prob. 30IA Ch. 7 - Prob. 31IA Ch. 7 - Prob. 32IA Ch. 7 - Prob. 33IA Ch. 7 - Prob. 34IA Ch. 7 - Prob. 35IA Ch. 7 - Solve: 7y2+y124yy2+7y+12=6y29

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The values of x in the rational expression 5 x + 2 x 2 + 12 x + 20 for which it is undefined.

Solution Summary: The author explains that the rational expression is undefined when the denominator is 0. Substitute x=-10 in the corresponding expression.

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To find: The values of x in the rational expression 5x+2x2+12x+20 for which it is undefined.

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Chapter 7 Solutions