Three Equations But Two Unknowns
Algebra
Level
4
\[\begin{cases} x^4- y^4 = 24 \\ x^2 + y^2 = 6 \\ x + y = 4 \end{cases} \]
If \(x\) and \(y\) satisfy the above system of equations, find \(x-y\).
by
Paul Ryan Longhas