SOLUTION: r^2-16 and r^2+6r+8 Find the LCM?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: r^2-16 and r^2+6r+8 Find the LCM?      Log On


   

Question 468023: r^2-16 and r^2+6r+8
Find the LCM?
Found 2 solutions by ewatrrr, stanbon:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

r^2-16 = (r-4)(r+4) 

r^2+6r+8 = (r+2)(r+4)

 LCD = (r+2)(r-4)(r+4)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
r^2-16 and r^2+6r+8
Find the LCM?
----
r^2-16 = (r-4)(r+4)
---
r^2+6r+8 = (r+4)(r+2)
-----
lCM = (r-4)(r+4)(r+2)
==========================
Cheers,
Stan H.
==========