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Let’s check out your problem:
Simplify.
\newline
2
(
3
x
)
−
4
\frac{2}{(3 x)^{-4}}
(
3
x
)
−
4
2
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Home
Math Problems
Algebra 2
Evaluate rational exponents
Full solution
Q.
Simplify.
\newline
2
(
3
x
)
−
4
\frac{2}{(3 x)^{-4}}
(
3
x
)
−
4
2
Identify base and exponent:
Identify the base and the exponent in
(
3
x
)
−
4
(3x)^{-4}
(
3
x
)
−
4
.
\newline
In
(
3
x
)
−
4
(3x)^{-4}
(
3
x
)
−
4
, the base is
3
x
3x
3
x
and the exponent is
−
4
-4
−
4
.
Apply negative exponent rule:
Apply the
negative exponent rule
, which states that
a
−
n
=
1
a
n
a^{-n} = \frac{1}{a^n}
a
−
n
=
a
n
1
.
\newline
So,
(
3
x
)
−
4
(3x)^{-4}
(
3
x
)
−
4
becomes
1
(
3
x
)
4
\frac{1}{(3x)^4}
(
3
x
)
4
1
.
Multiply by reciprocal:
Multiply the
fraction
2
2
2
by the reciprocal of
(
3
x
)
−
4
(3x)^{-4}
(
3
x
)
−
4
.
\newline
This gives us
2
×
(
1
(
3
x
)
4
)
2 \times \left(\frac{1}{(3x)^4}\right)
2
×
(
(
3
x
)
4
1
)
.
Simplify expression by multiplication:
Simplify the expression by multiplying the numerators and denominators. This results in
2
(
3
x
)
4
\frac{2}{(3x)^4}
(
3
x
)
4
2
.
Expand denominator by raising powers:
Expand the denominator
(
3
x
)
4
(3x)^4
(
3
x
)
4
by raising both
3
3
3
and
x
x
x
to the power of
4
4
4
. This gives us
2
3
4
×
x
4
\frac{2}{3^4 \times x^4}
3
4
×
x
4
2
.
Calculate
3
4
3^4
3
4
:
Calculate
3
4
3^4
3
4
to simplify the denominator further.
\newline
3
4
3^4
3
4
equals
81
81
81
.
Substitute
81
81
81
in denominator:
Substitute
81
81
81
for
3
4
3^4
3
4
in the denominator.
\newline
This gives us
2
/
(
81
×
x
4
)
2/(81 \times x^4)
2/
(
81
×
x
4
)
.
Final simplified answer:
The expression is now fully simplified, and there are no further simplifications possible. The final answer is
2
81
×
x
4
\frac{2}{81 \times x^4}
81
×
x
4
2
.
More problems from Evaluate rational exponents
Question
Simplify.
\newline
8
1
1
2
81^{\frac{1}{2}}
8
1
2
1
\newline
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\newline
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)
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(
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)
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\newline
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Simplify. Assume all variables are positive.
\newline
w
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3
w
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3
\frac{w^{\frac{4}{3}}}{w^{\frac{7}{3}}}
w
3
7
w
3
4
\newline
Write your answer in the form
A
A
A
or
A
B
\frac{A}{B}
B
A
, where
A
A
A
and
B
B
B
are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.
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Simplify. Assume all variables are positive.
\newline
(
2
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1
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8
(2r^{\frac{1}{3}})^8
(
2
r
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1
)
8
\newline
\newline
Write your answer in the form
A
A
A
or
A
B
\frac{A}{B}
B
A
, where
A
A
A
and
B
B
B
are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.
\newline
______
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Question
Simplify. Assume all variables are positive.
\newline
v
7
4
⋅
v
9
4
v^{\frac{7}{4}} \cdot v^{\frac{9}{4}}
v
4
7
⋅
v
4
9
\newline
\newline
Write your answer in the form
A
A
A
or
A
B
\frac{A}{B}
B
A
, where
A
A
A
and
B
B
B
are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.
\newline
______
\newline
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Question
Simplify.
\newline
1
1
4
⋅
1
1
4
1^{\frac{1}{4}} \cdot 1^{\frac{1}{4}}
1
4
1
⋅
1
4
1
\newline
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Question
Simplify.
\newline
3
2
(
−
1
/
5
)
32^{(-1/5)}
3
2
(
−
1/5
)
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Posted 1 year ago
Question
Simplify. Assume all variables are positive.
\newline
w
3
2
w
5
2
\frac{w^{\frac{3}{2}}}{w^{\frac{5}{2}}}
w
2
5
w
2
3
\newline
\newline
Write your answer in the form
A
A
A
or
A
B
\frac{A}{B}
B
A
, where
A
A
A
and
B
B
B
are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.
\newline
______
\newline
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Question
Simplify. Assume all variables are positive.
\newline
(
27
x
)
2
3
(27x)^{\frac{2}{3}}
(
27
x
)
3
2
\newline
\newline
Write your answer in the form
A
A
A
or
A
B
\frac{A}{B}
B
A
, where
A
A
A
and
B
B
B
are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.
\newline
______
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Question
Simplify. Assume all variables are positive.
\newline
x
1
4
x
11
4
\frac{x^{\frac{1}{4}}}{x^{\frac{11}{4}}}
x
4
11
x
4
1
\newline
\newline
Write your answer in the form
A
A
A
or
A
B
\frac{A}{B}
B
A
, where
A
A
A
and
B
B
B
are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.
\newline
______
\newline
Get tutor help
Posted 1 year ago
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