-2x patrat-x+3=0 inmultim cu -1 si avem 2x patrat+x-3=0
calculam delta=1+24=25
xunu=(-1+5)/4=4/4=1 si xdoi=(-1-5)/4=-6/4 simplificam=3/2
S={3/2, 1} succea
scuze succes

Răspunsuri

2014-04-19T06:38:02+03:00
2x²-2x+4-x²+2x³=2x²+4-3x-3
se reduc 2x² si 4
2x³-x²+x+3=0