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Binomial Formulas

 

Formulas

 
(x + y)2 = x2 + 2xy + y2
(x - y)2 = x2 - 2xy + y2 x2 - y2 = (x + y)(x - y)
(x + y)3 = x3 + 3x2y + 3xy2 + y3 x3 + y3 = (x + y)(x2 - xy + y2)
(x + 1)3 = x3 + 3x2 + 3x + 1  
(x - y)3 = x3 - 3x2y + 3xy2 - y3 x3 - y3 = (x - y)(x2 + xy + y2)
  x3 - 1 = (x - y)(x2 + x + 1)
(x + y)4 = x4 + 4x3y + 6x2y2 + 4xy3 + y4

 

 

 

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