Find the value of x in the equation 3x\(^2\) - 8x - 3 = 0
MATHEMATICS
WAEC 2003
Find the value of x in the equation 3x\(^2\) - 8x - 3 = 0
- A. \(\frac{1}{3},-3\)
- B. \(-\frac{1}{3},-3\)
- C. \(-\frac{1}{3},3\)
- D. \(\frac{1}{3},3\)
Correct Answer: C. \(-\frac{1}{3},3\)
Explanation
3x\(^2\) - 8x - 3 = 0
3x\(^2\) - 9x + x - 3 = 0
3x(x - 3) + 1(x - 3) = 0
(3x + 1)(x - 3) = 0
3x = -1 \(\implies\) x = \(-\frac{1}{3}\)
or x = 3.
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *