If x = sq. root of 2 and y = 4sq.root of 2. Check whether it is a solution of x-2y=4 or not

If x = sq. root of 2 and y = 4sq.root of 2. Check whether it is a solu

1.	If x = sq. root of 2 and y = 4sq.root of 2. Check whether it is a solution of x-2y=4 or not
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