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Do you know pascal's triangle and/or the binomial theorem?

(a+b)^3 = (a+b)(a+b)(a+b)
now simply multiply these factors and get the answer

can u help me without using the long method?

Of course @03453660, but the application of the binomial theorem is a more efficient method?

use binomial theorm

what is that?

@AmberCat21, I ask you once again, do you know pascal's triangle and/or the binomial theorem?

i know pascal's triangle but the binomial theorem....i don't think so

I haven't seen it before but the way my professor taught me was different

There are four entries in row n = 3 of Pascal's triangle. What are they? Can you tell me please?

Oh so now I get it..There is a pattern used here

Yes, Absolutely! Do you know what it is? Can you tell me what are the entries of row n = 3?

Do you know how the second entry of 2 in row n = 2 came about?

Yes @waterineyes, we already know this but @AmberCat21 asked for a more efficient method.

Then Binomial Theorem is the answer...