Write the equivalent inequalities.
The solutions of |
are all values of
that are less than –
or greater than
So, the given inequality can be rewritten as
–10 or 5
Divide each term by 5.
So, the solution set is all real numbers that are less than –2 or greater than 2.
Draw rays from the boundary points.
Here, the solution set includes all real numbers less than –2 or greater than 2. From –2 draw a ray pointing to the left. From 2 draw a ray pointing to the right.
Mark the boundary points.
The inequalities are
. Mark both the boundary points with parentheses.
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