Răspunsuri

2014-04-02T22:49:20+03:00
3x-6+8=x²-(x²+4+4x) 
3x+2= x²-x²-4-4x
3x+2=-4-4x
7x=-2
x=-2/7
2014-04-02T22:50:26+03:00
3x-6+8= x la a2- 1 la a2- ( x la a2+ 4x+ 4)
3x+2= xla a2 - 1-x la a2- 4x-4
3x= -3
x= -1
Sper ca e corect :D