Math, asked by Anonymous, 9 months ago

if (x+y) = 9 and (x-y) = 5 then ( x² +y²/2xy)= ?​

Answers

Answered by crazimathx
1

Answer:

x+y=9----->1

x-y=5----->2

substract 2 from 1

:. 2y=4

y=2.....

:. x=7....

:.x²+y²=7²+2²=49+4=53....

2xy=2X7X2=28...

:.53/28

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Answered by kanchankumari0201198
2

Answer:

x+y=9----->1

x-y=5----->2

substract 2 from 1

:. 2y=4

y=2.....

:. x=7....

:.x²+y²=7²+2²=49+4=53....

2xy=2X7X2=28...

:.53/28

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