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Question
Find the roots of the quadratic equation: 2x2 + 3x - 9 = 0?
Options:
A .  3, -3/2
B .  3/2, -3
C .  -3/2, -3
D .  3/2, 3
E .  2/3, -3
Answer: Option B


2x2 + 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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