Factorize :
x
4
+
x
2
+
1
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
Step 6
x
4
+
x
2
+
1
=
x
4
+
2
x
2
+
1
-
x
2
=
x
4
+
2
x
2
+
1
-
x
2
=
x
2
2
+
2
×
x
2
×
1
+
1
2
-
x
2
=
x
+
1
2
-
x
2
=
x
2
+
1
+
x
x
2
+
1
-
x
=
x
2
+
x
+
1
x
2
-
x
+
1