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ICSE Class 9 Answered

x-y=2,x2+y2=34. Find xy  
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Asked by Channakrishnappa7 | 11 Mar, 2021, 08:44: AM
answered-by-expert Expert Answer
begin mathsize 16px style straight x minus straight y space equals space 2 space..... given rightwards double arrow space open parentheses straight x minus straight y close parentheses squared equals space 4 rightwards double arrow straight x squared plus space straight y squared space minus space 2 xy space equals space 4 rightwards double arrow 34 space minus space 2 xy space equals space 4 space space..... space left parenthesis straight x squared plus space straight y squared equals 34 space.... space given right parenthesis rightwards double arrow 30 space equals space 2 xy space rightwards double arrow xy space equals 15 space end style
Answered by Yasmeen Khan | 11 Mar, 2021, 02:29: PM

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