Question

Range of value, solve for x, 2x-15

Answer 1

Answer:

3

Step-by-step explanation:

Set the denominator in  

3

x

2

−

2

x

−

15

equal to  

0

to find where the expression is undefined.

x

2

−

2

x

−

15

=

0

Solve for  

x

.

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x

=

5

,

−

3

The domain is all values of  

x

that make the expression defined.

Interval Notation:

(

−

∞

,

−

3

)

∪

(

−

3

,

5

)

∪

(

5

,

∞

)

Set-Builder Notation:

{

x

|

x

≠

−

3

,

5

}