Question on: WAEC Mathematics - 1995
Solve the equation 3x\(^2\) + 25x -18 = 0
A
-3,2
B
-2,3
C
-2,9
D
-9,2/3
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Correct Option: D
3x\(^2\) + 25x - 18 = 0
3x\(^2\) + 27x - 2x - 18 = 0
3x(x + 9) - 2(x + 9) = 0
(3x - 2)(x + 9) = 0
x = \(\frac{2}{3}\) or x = -9.
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