2) (-1,5*4)-2= -6-2= -8
3) (-1,9+0,9)*(-1,9-0,9)= (-1)*(-2,8)= 2,8
4) (6-8)³= (-2)³= -8
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2) (-1,5*4)-2= -6-2= -8
3) (-1,9+0,9)*(-1,9-0,9)= (-1)*(-2,8)= 2,8
4) (6-8)³= (-2)³= -8