Factorize :
4
x
2
+
12
x
y
+
9
y
2
Matching exercise
Match the items on the right to the items on the left.
Check
OK
Step 1
Step 2
Step 3
4
x
2
+
12
x
y
+
9
y
2
=
2
x
2
+
2
×
2
x
×
3
y
+
3
y
2
=
2
x
+
3
y
2
=
2
x
+
3
y
2
x
+
3
y