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Which of the following is the expanded form of \(x^4 + 4\) ?

1.) \((x^2 + 2x + 2)(x^2 - 2x + 2)\)

2.) \((x-2)(x+2)(x^2 + 2)\)

3.) \((x^2 - 2)(x^2 +2)\)

4.) None of the choices.

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