January 2019 0 13 Report
25.rozwiąż działania:
a) 6(x-4)-2
b) 2(x+1)-3(x-1)
c) -3(y-2)+4(y+2)
d) 5(x-y-1)-4(x+2)
e) 2(3a+b)-2(a-b)
f) ½(4x-4)-2x
g) x(x-1)-3(x²-x)
h) 5a(a-3)-3a(a-5)
i) 3x(x+⅓y)-2y(½x-½)

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