Question

if the equation x2-bx +1 =0 has two distinct real roots then which of the following is correct ​

Answer 1

Answer:

Step-by-step explanation:

The given equation is x²-bx+1=0

The given equation has distinct and real roots.

So b²-4×1×1>0

=>b²-4>0

=> b²>4

=> b>√4 or b<-√4

=> b>2 or b<-2.

Hope you got it.