Question

The condition for the roots of equation x? – Ix + m=0 to differ by one is :​

Answer 1

Answer:

Step-by-step explanation:

Let the roots of the equation: x  

2

−lx+m=0 be p,q

then, p+q=l,pq=m

and given, p−q=1

(p−q)  

2

=1

(p+q)  

2

−4pq=1

l  

2

−4m=1

l  

2

=4m+1