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Algebra

Posted: 04/11-2015 21:46
by inklae
Hvordan blir
[tex]3^{x+2}-3^{x+1}=9*3^{x}-3*3^{x}=6*3^{x}[/tex]


skjønner ikke stegene

Re: Algebra

Posted: 04/11-2015 22:22
by Janhaa
[tex]3^{x+2}-3^{x+1}=3^2*3^x-3^1*3^x=9*3^{x}-3*3^{x}=6*3^{x}[/tex]