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Question
If one zero of the quadratic polynomial `kx^2 + 3x + k is 2`, then find the value of k.
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Solution
Given: x = 2 is one zero of the quadratic polynomial `kx^2 + 3x + k`
Therefore, it will satisfy the above polynomial.
Now, we have
`k(2)^2 + 3(2) + k = 0`
⇒ 4k + 6 + k = 0
⇒ 5k + 6 = 0
⇒ k=`-6/5`
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