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can you tell me the binomische formel?
 Jan 6, 2013

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 #1
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( a + b )2 = a2 + 2ab + b2


( a - b )2 = a2 - 2ab + b2



( a + b ) ( a - b ) = a2 - b2
 Jan 6, 2013
 #2
avatar+3146 
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[input]expand((a+b)^2)[/input]
 Jan 23, 2013

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