I bet you can't figure this math question out

x + y + z = 1
x^2 + y^2 + z^2 = 3
xy + yz + xz = ?

so, what does xy + yz + xz equal? i can't figure it out. :(

x = 1
y = -1
z = 1

It doesn't matter if this isn't exact because in the third equation, everything is multiplying everything so :P

xy + yz + xz = (1)(-1) + (-1)(1) + (1)(1) = -1

i guess i cant. u said so!