How do you solve $|2x + 4| <8$ ?

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Answer 1 · 2016-06-25T03:23:31

x < 2
x > 6

I2x + 4I < 8
Separate solving into 2 parts:
a. (2x + 4) < 8
2x < 4
x < 2
b. - (2x + 4) < 8
-2x - 4 < 8
-2x < 12
x > 6
Graph:

============ 0 ======= 2-------------------- 6=============

How do you solve |2x + 4| <8|2x + 4| <8?