SOLUTION: How do I factorise: (a+b)^3-8b^3 Thank you

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Question 978898: How do I factorise:
(a+b)^3-8b^3
Thank you

Answer by Edwin McCravy(20055)   (Show Source): You can put this solution on YOUR website!

  

write that as



You need to know this factorisation:



Then substitute  for  and  for 
and simplify.

Now you can finish.  If you get stuck, you can tell me in
the thank-you note form below and I'll get back to you.

I do this for fun, not money.  So you don't have to pay.

Edwin

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