Răspuns:
y=7-2x
x^2+6x+19=7-2x
x^2+6x+19-7+2x=0
x^2+8x+12=0
delta=b^2-4ac=64-48=16
x1=(-8-4)/2=-12/2=-6
x2=(-8+4)/2=-4/2=-2
y1=7+12=19
y2=7+4=11
