Răspunsuri

2014-10-27T21:41:15+02:00
2014-10-27T21:41:50+02:00
42:{3+2x[1+4x(17-15)]}=
=42:[3+2x(1+4x2)]
=42:(3+2x9)
=42:21
=2
Sper ca te-am ajutat!