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QUESTION
A positive integer x is called a perfect square if x+n^2 for some n E N. Prove or disprove: c) If x does not equal 1 then either x is not a perfect...
A positive integer x is called a perfect square if x+n^2 for some n E N. Prove or disprove:
c) If x does not equal 1 then either x is not a perfect square or x+3 is not a perfect square.
Any method may be used.
