Question

If the equation ax^2?+bx^2+c=0 has equal roots then find the value of c.
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Answer 1

Answer:

Answer

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

D= b

2

−4ac=0

⇒ b

2

=4ac

⇒ c=

4a

b

2

Answer 2

Answer:

$for \: the \: equation \: to \: have \: equal \: roots$

$the \: discriminant \: \: must \: be \: equal \: to \: zero$

$d = b {}^{2} - 4ac = 0$

$= > b {}^{2} = 4ac$

$= > c = \frac{b {}^{2} }{4a}$