2008
Mathematics
67ca00ce0c643c71d77dee1f
If 2x2 - kx - 12 is divisible by x-4, Find the value of k
A.
4
B.
5
C.
6
D.
7
Correct Answer: 5
Explanation
2x2 - kx - 12 is divisible by x-4 implies x is a factor ∴ x = 4 f(4) implies 2(4)2 - k(4) - 12 = 0 32 - 4k - 12 = 0 -4k + 20 = 0 -4k = -20 k = 5
2x2 - kx - 12 is divisible by x-4 implies x is a factor ∴ x = 4 f(4) implies 2(4)2 - k(4) - 12 = 0 32 - 4k - 12 = 0 -4k + 20 = 0 -4k = -20 k = 5THIS WEEK's
Latest Articles
Top-Scorer Okoro Uchechukwu Solomon Reveals How He Scored 337 in JAMB
by samuel olalekan adeyemi
Bouncing Back: How Samuel Isaac Overcame Setbacks to Score 265 in JAMB and What He Learned
by samuel olalekan adeyemi
Managing Stress During Exams: Practical Tips for Students
by samuel olalekan adeyemi
