Răspuns :
x^2+7x+6=0
delta=b^2-4ac
delta=49-4*1*6
delta=49-24
delta=25
x1=-b-radical din delta/2x
x1=-7-5/2
x1=-12/2
x1=-6
x2=-b+radical din delta/2x
x2=-7+5/2
x2=-2/2
x2=-1
delta=b^2-4ac
delta=49-4*1*6
delta=49-24
delta=25
x1=-b-radical din delta/2x
x1=-7-5/2
x1=-12/2
x1=-6
x2=-b+radical din delta/2x
x2=-7+5/2
x2=-2/2
x2=-1