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The nature of the roots of the equations...

The nature of the roots of the equations ` ax^(2) + bx+ c =0 ` is decided by:

A

` b^(2) - 4ac `

B

` b^(2) + 4ac`

C

` b- 4ac `

D

` b+ 4ac `

Text Solution

Verified by Experts

The correct Answer is:
a
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