Determine the real solutions to the system of nonlinear equations.y = -x2 + 3x2 + y2 = 5
A. (1, 2), (-1, 2)
B. (2, -1), (-2, -1)
C. (1, 4), (4, 19)
D. (2, -1), (1, 2), (-1, 2), (-2, -1)
Answer: D
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