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If sum as well as product of roots of a ...

If sum as well as product of roots of a quadratic equation is 9, then what is the equation?

A

`x^(2)+9x-18=0`

B

`x^(2)-18x+9=0`

C

`x^(2)+9x+9=0`

D

`x^(2)-9x+9=0`

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