Advertisements
Advertisements
Question
If one zero of the quadratic polynomial kx2 + 3x + k is 2 then the value of k is ______.
Options
`5/6`
`(-5)/6`
`6/5`
`(-6)/5`
MCQ
Fill in the Blanks
Advertisements
Solution
If one zero of the quadratic polynomial kx2 + 3x + k is 2 then the value of k is `underlinebb((-6)/5)`.
Explanation:
x = 2 satisfies kx2 + 3x + k = 0.
∴ 4k + 6 + k = 0
⇒ 5k = –6
⇒ `k = (-6)/5`
shaalaa.com
Is there an error in this question or solution?
