October 2018 1 14 Report

rozwiąż zadania

a) 2a(b-3)-2b(a-3)=

b) 5a(a-2)+2a(a+5)=

c) a(b+a-ab)=

d) -2(x+4-y+z)=

e) 5(a+b)-(b-a)

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klaa 1 gim


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