Răspunsuri

2014-10-21T21:16:32+03:00
4x{5x3-[2x[13+5]-7x2+13-12x2]x2} =
4x[5x3-(2x18-7x2+13-12x2)x2] =
4x[5x3-(36-14+13-24)x2] =
4x(5x3-11x2) =
4x(15-22) =
4x(-7) =-28 .

Cred ca e bine .
2014-10-21T21:17:53+03:00