MathCastle
PrecalculusSuperchallengeSystems, Matrices, and Determinants

Systems, Matrices, and Determinants · Superchallenge problem

{x+y+z=3xy+yz+zx=−1xyz=−3\begin{cases} x+y+z=3 \\ xy+yz+zx=-1 \\ xyz=-3 \end{cases}   (list the solution set).