Find the roots of the quadratic equation: 2×2 + 3x – 9 = 0 ?

– by 0

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

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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