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Physics 23 Online
OpenStudy (anonymous):

square this (a+b+c+d)

OpenStudy (anonymous):

im so tired

OpenStudy (anonymous):

what is the difference between foil method and special product

OpenStudy (anonymous):

O.o ? what? see, all i can tell u is to use this formula (a+b)(a+b)=a^2+2ab+b^2 use ur brains & apply this formula

OpenStudy (anonymous):

what happen in the c and d

OpenStudy (anonymous):

variable

OpenStudy (anonymous):

group together a+b as 'x' & c+d as 'y'

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