Question

find the value of K in the following​

Answer 1

Answer:

According to question:-

${3x}^{2} - kx - 2 = 0$

$at \: x = 2$

$p(x) = {3x}^{2} - kx - 2 = 0$

$p(2) = {3(2)}^{2} - k(2) - 2 = 0$

$= > 12 - 2k - 2 = 0$

$= > 10 - 2k = 0$

$= > - 2k = - 10$

$= > k = \frac{ - 10}{ - 2}$

$= > k = 5$

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