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swissgirlBest ResponseYou've already chosen the best response.0
The 2b is throwing me off here
 one year ago

campbell_stBest ResponseYou've already chosen the best response.0
what are you asked to do... expand...
 one year ago

sami21Best ResponseYou've already chosen the best response.0
you want to expand it?
 one year ago

swissgirlBest ResponseYou've already chosen the best response.0
ya using binomail theorem
 one year ago

dpflanBest ResponseYou've already chosen the best response.1
you can just substitute another variable for 2b and plug 2b into the final expansion: \[(a+c)^{4}\] where c = 2b
 one year ago

campbell_stBest ResponseYou've already chosen the best response.0
the coefficients will be 1 4 6 4 1 so its 1a^4 + 4a^3(2b) + 6a^2(2b)^2 + 4a(2b)^3 + (2b)^4
 one year ago

panlac01Best ResponseYou've already chosen the best response.0
http://www.purplemath.com/modules/binomial.htm great stuff
 one year ago

swissgirlBest ResponseYou've already chosen the best response.0
oh yay. I like that link
 one year ago
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