# How do you find the LCD for #x-4 , x+2#?

##### 1 Answer

Jan 20, 2016

The LCD of

#### Explanation:

LCD is Least Common Divisor.

#(x-4) = (x-4)/1# and#(x+2) = (x+2)/1#

Then the only common divisor (scalar or polynomial) they have is

If you meant to ask what is the LCD of two rational expressions with denominators

#(x-4)(x+2) = x^2-2x-8#

The LCD in this case is the LCM (Least Common Multiple) of the two divisors.