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  • If x+y=8 and x-y=2 then find (2x^2+2y^2 )

If x+y=8 and x-y=2 then find (2x^2+2y^2 )

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best_answer

  x+y=8 and x-y=2

after adding we get

2x=10

x=5

and y=3

So

2x^2+2y^2=2(x^2+y^2)=2(5^2+3^2)=2(25+9)=2*34=68

Posted by

avinash.dongre

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