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If the roots a,b of the equation x2 -px + q =0, satisfy the realtion a2 + b2 = 9, then write the value of 'p' .
a+b=pab=qso, p^2=9+2ab=9+2qso, p = root(9+2q)note that we cannnot find a numerical value of p from just the above information
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