Question

If -1 is a zero of kx square -4x + k. find the value of k and other zeros

Answer 1

Hiii friend,

P(X) =kX² - 4X + K

P(-1) = K × (-1)² -4 × (-1) + K

=> K × 1 + 4 + K

=> K + K = -4

=> 2K = -4

=> K = -4/2 = -2.

Hence,

K = -2



HOPE IT WILL HELP YOU....... :-)

Answer 2

Hey

Here is your answer,

Substitute the value of x

kx^2 -4x+k=0
k(-1)^2 - 4x(-1) +k=0
k+4+k=0
2k=-4
k=-2

Hope it helps you!