dau coroana si abonare dar vă rog repede
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Răspuns:
a) -2/3 factor comun
-2/3(0,4+0,6) = -2/3·1 = -2/3
b) 3/5 factor comun
3/5(6/7-1/7) = 3/5·5/7 = 3/7
c) 1,9 factor comun
1,9(2,7-3,7) = 1,9·(-1) = -1,9
d) 1,4 factor comun
1,4(0,9-5,9) = 1,4·(-5) = -7