If ax2 + bx + c = 0 has equal roots, then c =
Let the roots of given equation be m and n
According to the question M = n
Sum of roots = m + n = – b / a
Product of roots = m × n = 
m2 = 
= 
= 
= c
Therefore c = 
4
If ax2 + bx + c = 0 has equal roots, then c =
Let the roots of given equation be m and n
According to the question M = n
Sum of roots = m + n = – b / a
Product of roots = m × n =
m2 =
=
=
= c
Therefore c =