Find any real numbers for which the rational expression is undefined. x+8/x-3 select the correct choice below and, if necessary, fill in the answer box to complete your choice.

x = 3

Step-by-step explanation:

What you wrote, x + 8/x - 3 means .

I assume you didn't mean that, but instead, you mean

, so I'll use this expression in the problem.

A fraction cannot have zero in the denominator since division by zero is undefined and not allowed. The denominator of the fraction is x - 3.

We need to find which value of x makes the expression x - 3 have a value of zero. Then that is the value of x that must be excluded from the domain.

We set the denominator equal to zero, and we solve for x.

x - 3 = 0

Add 3 to both sides.

x = 3

A value of 3 used for x makes the denominator equal zero, so the real number for which the expression is undefined is

x = 3.

i dont know

step-by-step explanation:

umm. i dont know

c. 6tan80

step-by-step explanation: