Question

What is the least common denominator of the rational expressions below?

Answer 1

x(x-3) ( x+4)

Explanation:

2 5

---------- + ------------

x^2 -3x x^2 + x - 12

Factor the denominator

2 5

---------- + ------------

x(x -3) (x-3) (x+4)

The common denominator is

x(x-3) ( x+4)