x²+8x-3=0
D=64+12=76
x1= (-8+√76)/2= (-8+2√19)/2= -4+√19
x2= (-8-√76)/2= -4-√19
y1= -4+√19-2= -6+√19
y2= -4-√19-2= -6-√19
y1+y2=-p
y1*y2= q
-6+√19-6-√19= -12
(-6+√19)(-6-√19)= 36+6√19-6√16-19=17
p=12
q= 17
y²+12y+17=0
x²+8x-3=0
D=64+12=76
x1= (-8+√76)/2= (-8+2√19)/2= -4+√19
x2= (-8-√76)/2= -4-√19
y1= -4+√19-2= -6+√19
y2= -4-√19-2= -6-√19
y1+y2=-p
y1*y2= q
-6+√19-6-√19= -12
(-6+√19)(-6-√19)= 36+6√19-6√16-19=17
p=12
q= 17
y²+12y+17=0