Question

If the roots of 9x²+(k-2)x-2=0 are opposite numbers then find the value of k?

Answer 1

Answer:2

Step-by-step explanation:

Let α & β be roots of the equation.

As the roots of this equation are opposite numbers

Sum of roots = 0

α + β = 0

Also we know α+β=-b/a

(2-k)/9=0

K=2.