Four Equations in Four Unknowns
Algebra
Level
2
\(\begin{align*} x + y + z + w &= 10 \\ x^2 + y^2 + z^2 + w^2 &= 30 \\ x^3 + y^3 + z^3 + w^3 &= 100\\ xyzw &= 24 \end{align*}\)
What is a solution of the system of equations above?
by
Laurent Garnier