If the set N is used only, there is a much simpler way. By seeing these equations we can say x should be less than 11 and should be perfect square hence it is 9.
By putting this value y= 4
If the set N is used only, there is a much simpler way. By seeing these equations we can say x should be less than 11 and should be perfect square hence it is 9.
By putting this value y= 4