(
4
x
−
1
)
2
Rewrite
(
4
x
−
1
)
2
as
(
4
x
−
1
)
(
4
x
−
1
)
.
(
4
x
−
1
)
(
4
x
−
1
)
Expand
(
4
x
−
1
)
(
4
x
−
1
)
using the FOIL Method.
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4
x
(
4
x
)
+
4
x
⋅
−
1
−
1
(
4
x
)
−
1
⋅
−
1
Simplify and combine like terms.
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16
x
2
−
8
x
+
1