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Zeros of a Polynomial

If one zero o...

Question

If one zero of the quadratic polynomial $k x^{2} + 3 x + k$ is 2 then find the value of k.

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Solution

Given one zero of the polynomial =2
so putting the value of x=2

so $4 K + 3 \times 2 + k = 0$
$5 k + 6 = 0$
$k = \frac{- 6}{5}$

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