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The roots of the equation x^(2) + ax + b...

The roots of the equation `x^(2) + ax + b = 0` are `"______"`.

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The correct Answer is:
`(-a+-sqrt(a^(2)-4b))/(2)`
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PEARSON IIT JEE FOUNDATION-QUADRATIC EXPRESSIONS AND EQUATIONS-Very Short
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  9. If (x-2)(x+3) =0 , then the values of x are "".

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  17. For what values of b, the roots of x^(2) +bx + 9 =0, are equal ?

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