Five mark exercise problem IX — task. Mathematics State Board, Class 10.

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If \(\alpha\), \(\beta\) are the roots of

7 x^{2} + a x + 2 = 0

and if \(\beta - \alpha =\)

\frac{-13}{7}

, then find the values of \(a\).

The values of \(a\) \(=\) ,

[Note: Enter the value from smallest to greatest]

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23. Five mark exercise problem IX