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Mathematics 13 Online
OpenStudy (anonymous):

(3a+4b)^3

OpenStudy (aroub):

rule:a^3 +3a^2b +3ab^2+b^3 just apply the rule! :)

OpenStudy (anonymous):

use your cubic expansion set (x+y)^3=x^3+3x^2y+3xy^2+y^3 which will give you 27a^3+36a^2b+48ab^2+64b^3

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