Question

if |x+2| <_9 then X belong.s to​

Answer 1

In

x

2

=

9

, you need to get rid of the power of 2 in order to isolate just

x

This involves finding the square root.

√

x

2

=

x

However there are 2 possible answers to a square root, a positive or a negative answer.

x

=

±

√

9

x

=

±

3

Answer 2

Answer:

....

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