September 2018 1 28 Report

1.zapisz w jak najprostrzej postaci nastepujace wyrazenie:

(2a-3b)^+(b-2a)(b+2a)-3b(b+2a).

2.zapisz sumy w posatci iloczynow:

a.4x^-12x

b.20x^y^+10xy^-15x^y

legenda:

^ - kwadrat


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