CTET 2 Math and Science Feb 2016 Paper

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Question : 35 of 120

Marks: +1, -0

One of the factors of x^4 + 4 is

$x^2 – 2$
$x^2 – 2x + 2$
$x^2 + 2$
$x^2 + 2x – 2$

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