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e)¼abb*(-2)=½abb
f) ½a²*4*(-a)*(-5)=-10a²
g) 3x²y*(-¹/₆xy)=½x³
h) -3(-x)(-x)(-y)=-3x²(-y)
i)0,2tsts²*(-15)=3t²s³
zad 2
a) 2x4y/2=1x2y
b) 3a²*6a/6=0.5a³
c)12y*(-4y)/-4=-3y²
d) 8x*10y*2k/½=20xyk