Solve the equation 3x\(^2\) + 25x - 18 = 0
A
-3, 2
B
-9, \(\frac{2}{3}\)
C
-2, 9
D
-2, 3
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
3x\(^2\) + 25x - 18 = 0;
3x\(^2\) - 2x + 27x - 18 = 0
x(3x - 2) + 9(2x + 2) = 0
(x + 9)(3x - 2) = 0
Either 3x - 2 = 0 or x + 9 = 0
3x = 2 or x = -9
∴ x = \(\frac{2}{3}\) or -9
Source: Myschool Past Questions Archive (Record #75819)