Question

If -2 is root of the equation x2 + kx -6 =0

Answer 1

Answer:

K=-1

Step-by-step explanation:

x=-2(given)

Putting this to the equation :-

x2+Kx-6=0

=>(-2)^2+k(-2)-6=0

=>4-2k-6=0

=>-2-2k=0

=>-2(1+1k)=0

=>1+1k=0

=>k=-1/1

=>k=-1