S
i
m
p
l
i
f
y
t
h
e
f
o
l
l
o
w
i
n
g
:
7
x
3
+
8
y
3
-
4
x
+
3
y
(
16
x
2
-
12
x
y
+
9
y
2
)
Match the items on the right to the items on the left.
Check
OK
STEP-1
STEP-2
STEP-3
STEP-4
STEP-5
