Determine the real solutions to the system of nonlinear equations.x2 + y2 = 85x2 - y2 = -77
A. (2, 9), (-2, 9), (2, -9), (-2, -9)
B. (2, 9), (9, 2), (-2, -9), (-9, -2)
C. (-2, -9), (-9, -2)
D. (2, -9), (2, 9)
Answer: A
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