Question

A quadratic equation ax2+bx+c=0, a is not equal to 0 has equal roots. What is the value of D

Answer 1

Step-by-step explanation:

D= -b + √b^2+2ac

2a

hope this formula will help you

Answer 2

Answer:

For the equation to have equal roots, the discriminant must be equal to zero.

D= b2 −4ac=0

⇒ b2 =4ac

⇒ c=b2/4a.

Step-by-step explanation:

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