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