Question

The sum of roots of the equation 5x² + (k+2) x -1 = 0, then the value of k is​

Answer 1

Savina !!!

Ur answer...........

Answer 2

Answer:

P(x) = 5x² + (k+2)x -1 = 0

a=5, b=k+2, c=-1

Let the roots of the equation be alpha and beta

So, Sum of roots= Alpha and beta

-b/a = 0

-k+2/5 = 5*0

-k+2 = 0

-k = -2

k = 2