SOLUTION: Find the LCM. r^2 + 16r + 64 , r^2 + 8r

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Question 156950: Find the LCM.
r^2 + 16r + 64 , r^2 + 8r

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
First factor the two expressions:


r%5E2+%2B+16r+%2B+64=%28r%2B8%29%28r%2B8%29


r%5E2+%2B+8r=r%28r%2B8%29


Now collect the unique factors (and the factors that occur most) to get r%28r%2B8%29%28r%2B8%29 (note: the last two factors came from the first expression). So the LCM is r%28r%2B8%29%28r%2B8%29