Kmtktm
Kmtktm
24-07-2016
Mathematics
contestada
( a + b - c)(a + b + c)
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konrad509
konrad509
24-07-2016
[tex] ( a + b - c)(a + b + c) =(a+b)^2-c^2=a^2+2ab+b^2-c^2[/tex]
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