Question

by using the discriminant, determine the value for k such that the equation will have exactly one root.

Answer 1

\[2x ^{2}-kx+3=0\]

Answer 2

when k = 0 id assume :)

Answer 3

wrong "k" lol sorry

Answer 4

you want the discriminant equal to 0

Answer 5

k^2 -4ac = 0

k^2 -4(2)(3) = k^2 - 24

Answer 6

ha I supose. I know the answer is k= +/-2 (root6) I just dont know how they got it.

Answer 7

k = +- sqrt(24)

k = +- sqrt(4*6)

k = +- 2sqrt(6)

Answer 8

ohh I see! THanks