What two numbers add up to 6 and multiply to 12?

Erm

x+y=6
xy=12

x+y=6
y=6-x
sub back

xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0


for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i







x=3+/-i√3

the numbers are 3+i√3 and 3-i√3
no real numbers tho