# Find the excluded value(s) of the rational expression . 1. set the denominator equal to 0. 3x2 48 =

2 answers

###### Question:

Find the excluded value(s) of the rational expression .

1. set the denominator equal to 0.

3x2 48 = 0

2. solve for x. 3x2 = 48

x2 = 16

what value(s) for x will make the rational expression undefined?

16

4

2, 3

0

1. set the denominator equal to 0.

3x2 48 = 0

2. solve for x. 3x2 = 48

x2 = 16

what value(s) for x will make the rational expression undefined?

16

4

2, 3

0

## Answers

b 4

Step-by-step explanation:

The function becomes undefined when the denominator goes to 0

3x² - 48 = 0

3x² = 48

x² = 16

x = +/ 4

From the given choices, it's x = 4

B. 4

Step-by-step explanation:

We have the equation x^2 = 16 and we want to solve for x.

Square root both sides:

[tex]\sqrt{x^2} =\sqrt{16}[/tex]

x = +/- 4

A rational expression is considered undefined when the denominator is equal to 0 (in other words, we get something like k/0, which is undefined). Here, the because [tex]3x^2-48=0[/tex] when x = 4, then the answer is B.

Hope this helps!

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