Question

if one zero of a quadratic polynomial K X square + 3 X + k then the value of k​

Answer 1

Given: x = 2 is one zero of the quadratic polynomial kx2 + 3x + k

Therefore, it will satisfy the above polynomial.

Now, we have

$k( {2})^{2} + 3(2) + k$

$= > 4k + 6 + k = 0$

$= > 5k + 6 = 0$

$k = - \frac{6}{5}$

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