Question

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

विकल्प

• `(-b)/(2a)`

• `b/(2a)`

• `(-b^2)/(4a)`

• `(b^2)/(4a)`

Answer 1

`bb((b^2)/(4a))`

Explanation:

It is given that the roots of the equation (ax² + bx + c = 0) are equal. 

∴ (b² – 4ac) = 0 

⇒ b² = 4ac 

⇒ `c = (b^2)/(4a)`