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[" If "x^(2)+ax+b" is an integer for eve...

[" If "x^(2)+ax+b" is an integer for every integer "x" then "],[" (A)' "a' is always an integer but 'b' need not be an integer "],[" (B) 'b' is always an integer but " "need not be an integer "],[" (C) a and b are always integers "],[" (D) none of these "]

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