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swissgirl
 2 years ago
Best ResponseYou've already chosen the best response.0The 2b is throwing me off here

campbell_st
 2 years ago
Best ResponseYou've already chosen the best response.0what are you asked to do... expand...

swissgirl
 2 years ago
Best ResponseYou've already chosen the best response.0ya using binomail theorem

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

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

panlac01
 2 years ago
Best ResponseYou've already chosen the best response.0http://www.purplemath.com/modules/binomial.htm great stuff

swissgirl
 2 years ago
Best ResponseYou've already chosen the best response.0oh yay. I like that link
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