Question

The value of k for which x=-2is a root of the Quadratic equation kxsqure +x -6=0

Answer 1

Step-by-step explanation:

If x=-2 is a root of quadratic equation kx^2+x-6=0

then we have,

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

=4k-2-6=0

=4k-8=0

=4k=8

=k=2