Factorize :
a
4
-
2
a
2
b
2
+
b
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
a
4
-
2
a
2
b
2
+
b
4
=
a
2
2
-
2
×
a
2
×
b
2
+
b
2
2
=
a
2
-
b
2
2
=
(
a
+
b
)
(
a
-
b
)
2
=
a
-
b
2
(
a
+
b
)
2