What is the difference of the rational expressions below?

3x/x-5 - 4/x

3x^2-4x+20/x^2-5x.

Step-by-step explanation:

The given rational expression is:

3x/x-5 - 4/x

Hence to find the difference of the rational numbers we have to take the L. C. M of the denominators:

Thus the L. C. M of x-5 and x is (x-5) (x) and then solve for the numerator:

x (3x) - 4 (x-5) / (x-5) (x)

Now solve the numerator and denominator:

3x^2-4x+20/x^2-5x

Thus the answer is 3x^2-4x+20/x^2-5x ...