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| |x-4|-2|<3 I need help with this absolute value

User Dujianchi
by
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1 Answer

3 votes

Answer:

-1 < x < 9

Explanation:

Eliminate the outer absolute value symbol.

-3 < |x -4| -2 < 3

Add 2

-1 < |x -4| < 5

We know that no absolute value can be negative, so this is fully equivalent to ...

|x -4| < 5

Eliminate the absolute value symbol.

-5 < x -4 < 5

Add 4

-1 < x < 9

___

For the graph, we graph the inequality ...

||x -4| -2| -3 < 0

The zero crossings are easy to find in this graphing calculator.

| |x-4|-2|<3 I need help with this absolute value-example-1
User Sreeraj VR
by
5.4k points