Factorize :
n
-
7
+
7
l
m
-
l
m
n
Matching exercise
Match the items on the right to the items on the left.
Check
OK
Step 1
Step 2
Step 3
n
-
7
+
7
l
m
-
l
m
n
=
n
-
7
+
7
-
n
l
m
=
n
-
7
-
n
-
7
l
m
=
n
-
7
1
-
l
m