Give All Solutions of the Nonlinear System of Equations, Including $\begin{aligned}x ^ { 2 } - 3 y ^ { 2 } & = 1 \\4 x ^ { 2 } + 3 y ^ { 2 } & = 19\end{aligned}$

question 262

Multiple Choice

Give all solutions of the nonlinear system of equations, including those with nonreal complex components.
$\begin{aligned}x ^ { 2 } - 3 y ^ { 2 } & = 1 \\4 x ^ { 2 } + 3 y ^ { 2 } & = 19\end{aligned}$

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

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