Răspunsuri

2014-10-18T19:15:54+03:00
1.4x²-4x+3x-3-5x²+10=-x²+x+7
2.2x²-x+14x-7-2x=2x²+11x-7
3.4x²+x-12x-3-4x²+6x+1=-5x-2 sau-(5x+2)
4.6x²-x+30x-5-6=6x²+29x-11