Factorize :
x
4
-
x
-
z
4
Matching exercise
Match the items on the right to the items on the left.
Check
OK
Step 1
Step 2
Step 3
Step 4
Step 5
x
4
-
x
-
z
4
=
x
2
2
-
x
-
z
2
=
x
2
+
x
-
z
2
x
2
-
x
-
z
2
=
x
2
+
x
2
-
2
x
z
+
z
2
x
+
x
-
z
x
-
x
-
z
=
2
x
2
-
2
x
z
+
z
2
(
x
+
x
-
z
)
(
x
-
x
+
z
)
=
2
x
2
-
2
x
z
+
z
2
(
2
x
-
z
)
(
z
)