Give All Solutions of the Nonlinear System of Equations, Including $\begin{array} { l } x ^ { 2 } + x y + y ^ { 2 } = 12 \\x + y = 2\end{array}$

question 28

Multiple Choice

Give all solutions of the nonlinear system of equations, including those with nonreal complex components.
$\begin{array} { l } x ^ { 2 } + x y + y ^ { 2 } = 12 \\x + y = 2\end{array}$

• A) {(4,-2)}
• B) {(-2,4)}
• C) {(4,-2),(-2,4)}
• D) {(3,-1),(-3,5)}

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