|x| </= 4 means that the distance of x from zero can't be four or less.
therefore the distance of x from zero must be greater than 4, so you get the following two inequalities:
x > 4 and x < -4
which is the same as |x| > 4
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|x| </= 4 means that the distance of x from zero can't be four or less.
therefore the distance of x from zero must be greater than 4, so you get the following two inequalities:
x > 4 and x < -4
which is the same as |x| > 4