September 2018 1 13 Report
Zapisz w jak najprostrzej postaci. a) (x-2) - (2-x) b) (a+b)+(2a-b) - (a-2b) c) (3x-y+1) - (x+y) + (y-x) d) -(2a do kwadratu-3ab) - (2b-3a do kwadratu) + (ab-b)

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