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giulsvalentini Group TitleBest ResponseYou've already chosen the best response.0
calculate (2x1)^5
 one year ago

Xavier1 Group TitleBest ResponseYou've already chosen the best response.0
( 2x  3y )4 = (2x)4 + 4(2x)3(3y) + 6(2x)2(3y)2 + 4(2x)(3y)3 + (3y)4
 one year ago

MrSensitive Group TitleBest ResponseYou've already chosen the best response.1
32x^5  80x^4 + 80x^3  40x^2 +10x  1
 one year ago

wmckinely Group TitleBest ResponseYou've already chosen the best response.1
10x  5 because: you multiply the numbers inside the parenthesis by the exponent of 5 so, 2x multiplied by 5 is 10x and 1 by 5 to get 5...
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
binomial theory, or binomial expansion i forget what it is called.
 one year ago

Peter14 Group TitleBest ResponseYou've already chosen the best response.0
this is just a busy work problem. MrSensitive has the right answer. @giulsvalentini do you know how to do it or do you need us to explain it to you?
 one year ago

giulsvalentini Group TitleBest ResponseYou've already chosen the best response.0
I have to use the Triangolo di Trataglia, di you know it? sorry for my English, I'm Italian :) @Peter14
 one year ago

Peter14 Group TitleBest ResponseYou've already chosen the best response.0
Pascal's triangle? yes, I know it
 one year ago

giulsvalentini Group TitleBest ResponseYou've already chosen the best response.0
so I have to apply th formule of the development of i don't know do you say power (a^n)?
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
http://www.mathsisfun.com/algebra/binomialtheorem.html it's the binomial theorem.
 one year ago

giulsvalentini Group TitleBest ResponseYou've already chosen the best response.0
exactly! @timo86m
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
link explains it very well.
 one year ago

Peter14 Group TitleBest ResponseYou've already chosen the best response.0
if you don't know how to say something in english say it in italian. I know spanish so I could understand, and if I don't there's always google translate
 one year ago

giulsvalentini Group TitleBest ResponseYou've already chosen the best response.0
I think today I won't do my math's homeworks.
 one year ago

giulsvalentini Group TitleBest ResponseYou've already chosen the best response.0
Thank you @timo86m
 one year ago

Peter14 Group TitleBest ResponseYou've already chosen the best response.0
you're skipping a day of math homework? it will only be harder tomorrow...
 one year ago

Peter14 Group TitleBest ResponseYou've already chosen the best response.0
@giulsvalentini I will help...
 one year ago
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