If aa n db(!=b) are the roots of the equ...

If `aa n db(!=b)` are the roots of the equation `x^2+a x+b=0,` then find the least value of `x^2+a x+b(x in R)dot`

A

`2/3`

B

`9/4`

C

`-9/4`

D

1

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The correct Answer is:

C

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