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Question
If the roots of the equation ax2 + bx + c = 0 are equal then c = ?
Options
`(-b)/(2a)`
`b/(2a)`
`(-b^2)/(4a)`
`(b^2)/(4a)`
MCQ
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Solution
`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)`
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