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If x²+ y²= 80 and xy = 12, find the value of (x - y)².
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Oct 23, 2023
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If x²+ y²= 80 and xy = 12, find the value of (x - y)².
Mathematics
college
Mehdi Behrooz
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Mehdi Behrooz
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We need to factorise (x−y) 2
We know the identity (a−b)2 =a2 −2ab+b2
Thus we have (x−y)2 =x2 −2xy+y2
Twedl
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Oct 25, 2023
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Twedl
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DoctorBroctor
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Oct 28, 2023
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