Question

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


−b2a
−b24a
b24a
b2a

Answer 1

Answer:

Hey

Given equation :-

• ax² + bx + c = 0

• It has equal roots .

To find :-

♦ The value of C .

Solution :-

equation = ax² + bx + c = 0

It has equal roots .

So ,

D = 0

b² - 4ac = 0

b² = 4ac

=> 4 a c = b²

=> c = b² / 4a

So ,

the value of c is = b² / 4a

MARK AS "BRAINIEST" ANSWER

Step-by-step explanation:

Answer 2

$\sf\huge\bold{Answer:}$

Given :

• Quadratic equation :ax²+bx+c=0
• Equal & Real roots

To find :

• Value of c

Solution :

When roots are equal, then discriminant D = 0 for a quadratic equation.

• Discriminant

→D=b²-4ac

→0=b²-4ac

→-b²= -4ac

→ -b²/-4a = c

→ c= b²/4a

Hence, value of c = b²/4a