Question

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

Answer 1

Answer:

5x²+(k+2)x-1=0

a=5

b=(k+2)

c= -1

sum of roots = -b/a

sum of roots = -(k+2)/5

(k+2)/5= -(sum of roots)

k+2= -5(sum of roots)

k= -5(sum of roots)-2

k= -[5(sum of roots)+2]

sum of roots = 0

k = - (5(0)+2)

k= -(0+2)

k= -2

Answer 2

Answer:

Rudranil get out of my question