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Chapter 8: Q. 4 (page 917)

In the following exercises, determine the values for which the rational expression is undefined.

(a)5pq29q(b)7a-43a+5(c)1x2-4

Short Answer

Expert verified

The required values for which the given expressions are undefined,

Part(a)q=0Part(b)a=-53Part(c)x=卤2

Step by step solution

01

Part(a) Step 1. Given Information  

The given expressions are

(a)5pq29q(b)7a-43a+5(c)1x2-4

02

Part (a) Step 2. Calculation   

Set the denominator equal to zero and solve for the variable to determine for which values the given expression is undefined.

9q=0q=0

03

Part (b) Step 1. Calculation   

Set the denominator equal to zero and solve for the variable to determine for which values the given expression is undefined.

3a+5=03a=-5a=-53

04

Part(c) Step 1. Calculation  

Set the denominator equal to zero and solve for the variable to determine for which values the given expression is undefined.

x2-4=0x2=4x=4x=卤2

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