Solve the equation 3 + 5x - 2x\(^2\) = 0
A
\(-\frac{1}{2},-3\)
B
2, 3
C
-2, 3
D
\(-\frac{1}{2},3\)
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
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 = \(\frac{-1}{2}\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #26470)