Question

The roots of the equation, x2 + bx + c = 0 are equal if _________​

Answer 1

Answer:

b^2-4ac = 0

Step-by-step explanation:

two equal real root, if b2 -4ac= 0

Answer 2

Answer:

$Roots \: are \: equal, \: if \: Discriminant = 0. \\ D = 0 \\ {b}^{2} - 4c = 0 \\ {b}^{2} = 4c$