P
r
o
v
e
t
h
a
t
:
a
3
+
b
2
+
c
3
-
3
a
b
c
=
1
2
(
a
+
b
+
c
)
{
(
a
-
b
)
2
+
(
b
-
c
)
2
+
(
c
-
a
)
2
}
Match the items on the right to the items on the left.
Check
OK
STEP1
STEP2
STEP3
STEP4
