Find all real solutions to the system of equations using the addition method. x2 - 2y2 = 23x2 + 2y2 = 14
A. (2, 1), (-2, -1)
B. (-1, 2), (1, -2)
C. (2, 1), (2, -1), (-2, 1), (-2, -1)
D. (1, 2), (-1, 2), (1, -2), (-1, -2)
Answer: C
Mathematics
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