$\"\"$

The replacement set is $\"\"$ .

Replace x in $\"\"$ with each value in the replacement set and

check whether the equation is true or not.

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\
x
\ \
$\"\"$
\ \
$\"\"$
\
\
-2
\ \
$\"\"$
\ \
$\"\"$
\
\
-1
\ \
$\"\"$
\ \
$\"\"$
\
\
0
\ \
$\"\"$
\ \
$\"\"$
\
\
1
\ \
$\"\"$
\ \
$\"\"$
\
\
2
\ \
$\"\"$
\ \
$\"\"$
\
\

The solution set of $\"\"$ $\"\"$

The solution set is $\"\"$ .

\ x \	\ $\"\"$ \	\ $\"\"$ \
\ -2 \	\ $\"\"$ \	\ $\"\"$ \
\ -1 \	\ $\"\"$ \	\ $\"\"$ \
\ 0 \	\ $\"\"$ \	\ $\"\"$ \
\ 1 \	\ $\"\"$ \	\ $\"\"$ \
\ 2 \	\ $\"\"$ \	\ $\"\"$ \