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Problem
Problem
Write as a single power of 2: a.
a
2
×
2
a
2 \times 2^a
2
×
2
a
b.
b
4
×
2
b
4 \times 2^b
4
×
2
b
c.
c
8
×
2
t
8 \times 2^t
8
×
2
t
d.
d
(
2
x
+
1
)
2
(2^{x+1})^2
(
2
x
+
1
)
2
e.
e
(
2
1
−
n
)
−
1
(2^{1-n})^{-1}
(
2
1
−
n
)
−
1
f.
f
2
c
4
\frac{2^c}{4}
4
2
c
g.
g
2
m
2
−
m
\frac{2^m}{2^{-m}}
2
−
m
2
m
h.
h
4
2
1
−
n
\frac{4}{2^{1-n}}
2
1
−
n
4
i.
i
2
x
+
1
2
x
\frac{2^{x+1}}{2^x}
2
x
2
x
+
1
j.
j
4
x
2
1
−
x
\frac{4^x}{2^{1-x}}
2
1
−
x
4
x
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