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mathhatesme123
 3 years ago
How to Expand (x + 2y)^5
mathhatesme123
 3 years ago
How to Expand (x + 2y)^5

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hal_stirrup
 3 years ago
Best ResponseYou've already chosen the best response.2(x+2y)(x+2y)(x+2y)(x+2y)(x+2y)

TuringTest
 3 years ago
Best ResponseYou've already chosen the best response.1^that is probably the ugliest way to do it I would use either Pascal's triangle or the binomial theorem

hal_stirrup
 3 years ago
Best ResponseYou've already chosen the best response.2it take a long time if you do it that way. true

hal_stirrup
 3 years ago
Best ResponseYou've already chosen the best response.2i like to show the long way so it becomes more clear. Pascal's triangle is goog way to do it. or a calculator!!

TuringTest
 3 years ago
Best ResponseYou've already chosen the best response.1binomial theorem:\[(a+b)^n=\sum_{k=0}^n\binom nka^{nk}b^k\]where\[\binom nk={n!\over k!(nk)!}\]

TuringTest
 3 years ago
Best ResponseYou've already chosen the best response.1if the binomial theorem looks like Greek to you then I would go with Pascal's triangle since it is only to the 5th power
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