Give All Solutions of the Nonlinear System of Equations, Including $$\begin{array} { r } x y = 72 \\x + y = - 17\end{array}$$

Multiple Choice

Give all solutions of the nonlinear system of equations, including those with nonreal complex components.
- $$\begin{array} { r } x y = 72 \\x + y = - 17\end{array}$$

A) $\{ ( - 8,9 ) , ( - 9,8 ) \}$
B) $\{ ( 8,9 ) , ( 9,8 ) \}$
C) $\{ ( - 8 , - 9 ) , ( - 9 , - 8 ) \}$
D) $\{ ( 8 , - 9 ) , ( 9 , - 8 ) \}$