Question

In the rational expression x 3/x-5, the domain cannot include the number.

A) 5
B) 3
C) 0
D) -3

Answer 1

The domain of the given rational expression x^3/(x-5) cannot include the number 5.

Step-by-step explanation:

The given rational expression is x^3/(x-5). To identify the numbers that cannot be included in the domain of this expression, we need to look for values of x that would make the denominator equal to zero. In this case, the denominator x-5 would be equal to zero if x is equal to 5. Therefore, the answer is A) 5.