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Solve the Nonlinear System of Equations {5x2−4y2=644x2+4y2=80\left\{ \begin{array} { l } 5 x ^ { 2 } - 4 y ^ { 2 } = 64 \\4 x ^ { 2 } + 4 y ^ { 2 } = 80\end{array} \right.

Question 1

Multiple Choice

Solve the nonlinear system of equations.
- {5x2−4y2=644x2+4y2=80\left\{ \begin{array} { l } 5 x ^ { 2 } - 4 y ^ { 2 } = 64 \\4 x ^ { 2 } + 4 y ^ { 2 } = 80\end{array} \right.


A) (4,−2) ,(4,2) ( 4 , - 2 ) , ( 4,2 )
B) (4,2) ,(2,4) ,(−4,−2) ,(−2,−4) ( 4,2 ) , ( 2,4 ) , ( - 4 , - 2 ) , ( - 2 , - 4 )
C) (−4,−2) ,(−2,−4) ( - 4 , - 2 ) , ( - 2 , - 4 )
D) (4,2) ,(−4,2) ,(4,−2) ,(−4,−2) ( 4,2 ) , ( - 4,2 ) , ( 4 , - 2 ) , ( - 4 , - 2 )

Correct Answer:

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