Question
If (a + b) = 8 and ab = 10, then find the value of
(a2Â + b2).Solution
According to the question,
(a + b)2Â = 82
Or, a2Â + b2Â + 2ab = 64
Or, a2Â + b2Â + 20 = 64
So, a2Â + b2Â = 64 - 20 = 44
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