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Answer:
(3, 0) and (−1, −8)
Equation's:
2x − (x² − 9) = 6
2x - x² + 9 = 6
-x² + 2x + 9 - 6 = 0
-x² + 2x + 3 = 0
x² - 2x - 3 = 0
x² - 3x + x - 3 = 0
x(x - 3) + 1(x - 3) = 0
(x + 1)(x - 3) = 0
x = -1, x = 3
If x = -1, then y = (-1)² - 9 = -8
If x = 3, then y = (3)² - 9 = 0
(x, y) = (-1, -8), (3, 0)