A. 3, -3/2
B. 3/2, -3
C. -3/2, -3
D. 3/2, 3

Explanation:

2×2 + 6x – 3x – 9 = 0
2x(x + 3) – 3(x + 3) = 0
(x + 3)(2x – 3) = 0
=> x = -3 or x = 3/2.

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