Question

11) If a quadratic equation has two equal roots, then the discriminant is A) b? - 4ac < 0 B) b2 - 4ac > 0 c) b? --- 4ac = 0 D) b2 - 4ac 20​

Answer 1

C

Then equation will be -b/2a and not +/- part.So equal root

b^2-4ac=0

Answer 2

Answer:

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