Question

if xy= -3 and (x+y)^2 = 33, what is the value of x^2 + y^2?

Answer 1

(x+y)² = x² + 2xy + y² = 33
2xy = -6

so; x²+y² = 39

Answer 2

you made it seem so easy! thanks!

Answer 3

It's my pleasure :)