SOLUTION: I am not sure how to find out the LCD. Can you please help? Thanks!! 3a^2/a^2+a+1 2a/a-1 a^3/a^3-1 I know that in order to find the LCD you would have to multiply the top

Question 454771: I am not sure how to find out the LCD. Can you please help? Thanks!!
3a^2/a^2+a+1 2a/a-1 a^3/a^3-1
I know that in order to find the LCD you would have to multiply the top and bottom of the fraction but on this one I just keep getting stuck :( Help!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
3a^2/a^2+a+1 2a/a-1 a^3/a^3-1
-----
Factor each denominator:
a^2+a+1 is not further factorable.
a-1 is not further factorable.
a^3-1 = (a-1)(a^2+a+1)
-------------------------
LCD = (a-1)(a^2+a+1)
====================
Cheers,
Stan H.
RELATED QUESTIONS
I am stuck on this problem...I found that the LCD is (a+1)(a+3) but I am not sure where... (answered by edjones)

I have been working on this problem for quite a wile but I cant seem to figure it out... (answered by ankor@dixie-net.com)

Please help me solve this equation: {{{(3a-5)/(a^2+4a+3)+(2a+2)/(a+3)=(a-3)/(a+1)}}}... (answered by Greenfinch)

Hi, I need some help with this function... f(a+3)=2x^2+2x-3 I know how to find... (answered by vleith)

I have a few I am totally stuck on. #1)2/x+3 - 2x+3/x-1 = 6x-5/x^2+2x-3 Okay... (answered by mananth)

The book is Algebra, 3/e, by K. Elayn Martin-Gay! Determine whether each of the... (answered by checkley75)

i really need help with this problem: express the volume of a rectangular prism with... (answered by stanbon)

Simplify (be sure to rationalize all denominators) 10. 3b[SQRT(27a^5b)] +... (answered by Earlsdon,jim_thompson5910)

Hello tutors! I'm stuck on this one. The answer is 4a^2/[9(a-1)], but I'm not sure how... (answered by longjonsilver)