If ax2 + bx + c = 0 has equal roots, then c =

Q4 of 242 Page 9

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 =

If the equation x² – ax + 1 = 0 has two distinct roots, then

If the equation 9x² + 6kx + 4 = o has equal roots, then the roots are both equal to ?

If the equation ax² + 2x + a = 0 has two distinct roots, if

The positive value of k for which the equation x² + kx + 64 = 0 and x² – 8x + k = 0 will both have real roots, is