December 2018 1 7 Report
2. Wykonaj działania:
f) -4a(-5a+5ab-3b).
4. Doprowadź wyrażenie do najprostszej postaci:
a) -3(2y-3x)+2(3y+2x)
b) -4(x-5y)-3(-2y-x)
c) 2x(x+2y)-x(2x+y)
Pilne! Na teraz! Proszę!

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