Factorize :
4
a
2
-
9
b
2
-
2
a
-
3
b
Matching exercise
Match the items on the right to the items on the left.
Check
OK
Step 1
Step 2
Step 3
Step 4
4
a
2
-
9
b
2
-
2
a
-
3
b
=
2
a
2
-
3
b
2
-
2
a
+
3
b
=
2
a
-
3
b
2
a
+
3
b
-
2
a
+
3
b
=
2
a
+
3
b
2
a
-
3
b
-
1
=
2
a
+
3
b
(
2
a
-
3
b
-
1
)