September 2018 2 18 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, proszę:)


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