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 (a+3)(a+2)-(a+1)²

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(a+3)(a+2)-(a+1)²

 31.03.2020

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(a+3)(a+2)-(a+1)²

 

Hello Gast!

 

\((a+3)(a+2)-(a+1)² \\ =a²+2a+3a+6-a²-2a-1\\ \color{blue}=3a+5\)

laugh  !

 31.03.2020
bearbeitet von asinus  31.03.2020

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