S
i
m
p
l
i
f
y
t
h
e
f
o
l
l
o
w
i
n
g
:
(
6
m
-
n
)
36
m
2
+
6
m
n
+
n
2
-
3
m
+
2
n
3
Match the items on the right to the items on the left.
Check
OK
STEP-1
STEP-2
STEP-3
STEP-4
STEP-5
STEP-6