Question

the linear factors of the quadratic equation X square + kx + 1 equal to zero are​

Answer 1

Answer:

x²+kx+1 =0....... (1)

a=1. b=k. c=1.

b²-4ac=k²-4×1×1

=k²-4

=(k+2) or (k-2) =0

Put k =2 in eq. (1)

x²+2x+1 =0

(x+1)²=0

x+1 =0

Now put k = -2 in eq.(1)

We get

x -1=0