Question

If
$ax^{2} + \: bx \: + c = 0$
has equal roots then find the value of x.​

Answer 1

Answer is c = b2/ 4

Explanation

ax2 + bx + c =0

d = 0

b2 - 4ac =0

b2 = 4ac

b2 = 4 × 1 × c

b2 = 4c

c= b2 / 4