Cevaplar

2012-11-16T17:22:42+02:00

(10-10x) (10-10x)

100-100x-100x+100x

=100-100x

 

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2012-11-16T18:14:54+02:00

(a-b)^2=a^2-2ab+b^2

(10-10x)=100-200x+100x^2

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