Question

k x square - 3 x minus 1 is equal to zero is 1 upon 2 then find the value of k

Answer 1

Answer:

K square -3-1= 0

So ksquare =4 because -3 and -1 are brought to the other side.

Then we root 4to remove the square on k so finally the value of k is 2

Step-by-step explanation:

Answer 2

Dear Student,
it is given that X=1 / 2,
$k {x}^{2} - 3x - 1 = 0$
$and \: \: x = \frac{1}{2}$
put X value in

the above equation....
$k { \frac{1}{2} }^{2} - \frac{3}{2} - 1 = 0$
$\frac{k}{4} - \frac{3}{2} - 1 = 0$
$\frac{k}{4} = \frac{3}{2} + 1$
$\frac{k}{4} = \frac{5}{2}$
$k = \frac{5 \times 4}{2}$
$k = 5 \times 2$
$k = 10$
Hope this answer helps you a lot...
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