Question

If x2-3kx+8is dividend by x-2 then value of k is

Answer 1

Answer:

2 is the ANSWER

Step-by-step explanation:

x square - 3kx + 8

put x=2 in p(×) [ because ×= 2]

(2)square - 3k(2) +8= 0

4- 6k + 8=0

12 - 6k = 0

- 6k = - 12

- k = -12/6

k = 2 ........ :)

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Answer 2

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Question : -

If x^2 - 3kx + 8 is divided by x - 2, what is the value of k ?

Solution : -

$x - 2 = 0$

$x = 0 + 2$

$x = 2$

Now taking out the value :

$f(x) = {x}^{2} - 3kx + 8 = 0$

$f(2) = {(2)}^{2} - 3k(2) + 8 = 0$

$4 -6k + 8 = 0$

$4 + 8 -6k = 0$

$12 - 6k = 0$

$6k = 0 + 12$

$k = \frac{12}{6}$

$k = 2$

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