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¤« 08/04/2018 at 15:12||4x-2| - 2| = 4
Scenerio (S.c.) 1:
|4x - 2| - 2 = 4
|4x - 2| = 6
S.c. 1.1:
4x - 2 = 6
4x = 8
x = 2.
S.c. 1.2:
4x - 2 = -6
4x = -4
x = -1.
S.c. 2:
|4x - 2| - 2 = -4
|4x - 2| = -2
|4x - 2| is always larger or equal to 0, so there is no value of x in this scenerio.
Thus, the values of x are 2; -1.
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Nguyễn Nhật Minh 21/03/2017 at 18:16||4x-2| - 2| = 4
Scenerio (S.c.) 1:
|4x - 2| - 2 = 4
|4x - 2| = 6
S.c. 1.1:
4x - 2 = 6
4x = 8
x = 2.
S.c. 1.2:
4x - 2 = -6
4x = -4
x = -1.
S.c. 2:
|4x - 2| - 2 = -4
|4x - 2| = -2
|4x - 2| is always larger or equal to 0, so there is no value of x in this scenerio.
Thus, the values of x are 2; -1.