Question

x,y,z are reals that satisfy
2X^2Y^2+X^2+2Y^2=77
2Y^2Z^2+Y^2+Z^2=110
2Z^2X^2+2Z^2+X^2=101
find (xyz)^2

Answer 1

is this supposed to be linear algebra?

Answer 2

yah,but unknown variables dont cancel each other so i dont have know how to continue

Answer 3

positive no typos?
that's not supposed to be a 2z^2 in the second line?