September 2018 1 21 Report

doprowadź do najprostszej postaci:

(a-b)²-(a-b)(a+b)=

(2x-3)²+(x+1)(x-a)

-(3x-5)(3x+5)+(x-10)²

2(½x-y)²-6(⅔x+1)(⅔x-1)

potrzebne ja już, prooooszę:) i jak można to wytłumaczenie

matematyla 2001 nowa wersja,zad 15 str 100(2 gim)


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