Question

If the roots of the equation ax²+bx+c =0 are equal then c=?

Answer 1

Hello friend,

Since the roots are equal,

D(discriminant) = b^2-4ac

D=b^2-4ac=0

4ac=b^2

c=b^2/4a

Hope you got the idea. Please mark the answer as the brainliest.

Answer 2

SOLUTION :  

Option (d) is correct :  b²/4a

Given : ax² + bx + c = 0

This given equation is the standard form of quadratic equation. Therefore, D(discriminant) = b² – 4ac

D = 0 (equal roots given)

b² – 4ac = 0

b² = 4ac  

c = b²/4a  

Hence, the value of c is b²/4a.

HOPE THIS ANSWER WILL HELP YOU... ...