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18.03.2013

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x2 - |x| - 2 = 0.

: x = 2, x = -2.


|x2 - 3|x| + 1| = 1.

: x = 0, x = 1, x = -1, x = 2, x = -2, x = 3, x = -3.


|x + 2| = 2(3 - x).

: x = 4/3.


|x3 - x| = x + 4.

: x = 2 x = .


|x + 5| + |x - 8| = 13.

: -5 ≤ x ≤ 8.


||x + 1| - |x - 3|| = |x|.

: x = -4, x = 4, x = 2, x = 2/3.


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