If (a−b)=7 and ab=9 then (a2+b2)=? (a) 67 (b) 31 (c) 40 (d) 58 – InterviewSolution

1.	If (a−b)=7 and ab=9 then (a2+b2)=? (a) 67 (b) 31 (c) 40 (d) 58
Answer» If $(a - b) = 7$ and $a b = 9$ then $(a^{2} + b^{2}) = ?$ (a) 67 (b) 31 (c) 40 (d) 58

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