September 2018 1 20 Report

Zapisz w jak najprostszej postaci:

a) 6a²-3c+2a²-5c-10a²+c

b) 2(5x-7y)-(3y-7x)

c) (5+2x)(3x-2)

d) 2x(4x-1)-(x-2)(x+2)


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