Correct Answer: Option D

Explanation

3 + 5x - 2x\(^2\) = 0
3 + 6x - x - 2x\(^2\) = 0
3(1 + 2x) - x(1 + 2x) = 0
(3 - x)(1+2x) = 0
3 - x = 0 or 1 + 2x = 0

x = 3 or x = \(\frac{-1}{2}\)

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