Answer :
Answer:
a
2
−
2
a
b
+
b
2
=
(
a
−
b
)
2
with
a
=
3
x
and
b
=
4
9
x
2
−
24
x
+
16
=
(
3
x
)
2
−
(
2
⋅
(
3
x
)
⋅
4
)
+
4
2
=
(
3
x
−
4
)
2
Answer:
a
2
−
2
a
b
+
b
2
=
(
a
−
b
)
2
with
a
=
3
x
and
b
=
4
9
x
2
−
24
x
+
16
=
(
3
x
)
2
−
(
2
⋅
(
3
x
)
⋅
4
)
+
4
2
=
(
3
x
−
4
)
2