Solve the system by the elimination method or a combination of the elimination and substitution methods.x2 + 3xy + y2 = 4 x2 - 3xy - y2 = 4
A. {(2, 0), (-2, 0), (2, -6), (-2, 6)}
B. {(2, -6), (-2, 6)}
C. {(0, 2), (0, -2), (2, -6), (-2, 6)}
D. {(2, 0), (-2, 0)}
Answer: A
Mathematics
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B. 
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