Question

one of the roots of quadratic equation 2x^2+kx-2=0 is -2,find k?​

Answer 1

Answer:

the answer is 1/2

Step-by-step explanation:

i hope that help

Answer 2

Answer:

The value of $k$ in the given equation is $3$.

Step-by-step explanation:

Given $-2$ is a root of the equation $2x^{2} +kx-2=0$.

Therefore

$2(-2)^{2}+k(-2) -2=0\\\\8-2k-2=0\\\\6-2k=0\\\\2k=6\\\\k=3$

hence the answer.

thank you