Factorize :
3
a
-
b
2
-
9
c
2
Matching exercise
Match the items on the right to the items on the left.
Check
OK
Step 1
Step 2
Step 3
3
a
-
b
2
-
9
c
2
=
3
a
-
b
2
-
3
c
2
=
3
a
-
b
+
3
c
3
a
-
b
-
3
c
=
3
a
-
b
+
3
c
3
a
-
b
-
3
c