S
i
m
p
l
i
f
y
:
(
x
+
y
)
3
-
(
x
-
y
)
3
-
6
y
(
x
2
-
y
2
)
Match the items on the right to the items on the left.
Check
OK
STEP1
STEP2
STEP3
STEP4
STEP5