September 2018 1 9 Report

Zad1.Zamień sumę na iloczyn

a) 7 (x - 3) - (x - 3) =

b) 4 (x + 5) + 20 (x +5)=

c) 0,2 ( -10 + x) - ( x - 10) =

Zad2.Wyłącz wspólny czynnik przed nawias

a) -1.6a - 0,8b - 4.8c =


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