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(x+4)^2-(x-4)^2

 13.10.2020
 #1
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(x+4)^2-(x-4)^2

 

Hallo Gast!

 

(x+4)2(x4)2=x2+8x+16x2+8x16

(x+4)2(x4)2=16x

laugh  !

 13.10.2020

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