If one root of the equations A x ^(2) ...

If one root of the equations ` A x ^(2) + b x + c = 0 ` is two and a half times the others, then which of the following is TRUE ?

A

`7 B^(2) = 3 CA`

B

` 7 B^(2) = 4 CA`

C

`7 B^(2) = 36 CA`

D

`10 B^(2) = 49 CA`

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The correct Answer is:

D

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