Question

What is the value of the rational expression below when x is equal to 4? x-4/x-6

Answer 1

Answer: -3

Step-by-step explanation: using the mathematical process

4-(4/4)-6=

4-1-6= -3

Answer 2

Answer:

Actually there are two answers: -3 and 0, depending on how the expression is written.

Step-by-step explanation:

If the rational expression is x - 4/x - 6, we have:

x - 4/x - 6

= 4 - 4/4 - 6

= 4 - 1 - 6 = 4 - 7 = -3

If the rational expression is (x - 4)/(x - 6), we have:

(x - 4)/(x - 6)

= (4 - 4)/(4 - 6)

= 0/-2 = 0