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Which Method Should Be Used to Solve the System? Explain 2x2+5y2=42x2y=1\begin{aligned}- 2 x ^ { 2 } + 5 y ^ { 2 } & = 4 \\- 2 x - 2 y & = - 1\end{aligned}

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Essay

Which method should be used to solve the system? Explain your answer, including a description of the first step.
- 2x2+5y2=42x2y=1\begin{aligned}- 2 x ^ { 2 } + 5 y ^ { 2 } & = 4 \\- 2 x - 2 y & = - 1\end{aligned}


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