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Let’s check out your problem:
The expression
5
⋅
5
3
\sqrt{5} \cdot \sqrt{5^{3}}
5
⋅
5
3
is equivalent to
\newline
5
1
2
5^{\frac{1}{2}}
5
2
1
\newline
5
3
4
5^{\frac{3}{4}}
5
4
3
\newline
5
4
3
5^{\frac{4}{3}}
5
3
4
\newline
5
2
5^{2}
5
2
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Math Problems
Algebra 1
Multiplication with rational exponents
Full solution
Q.
The expression
5
⋅
5
3
\sqrt{5} \cdot \sqrt{5^{3}}
5
⋅
5
3
is equivalent to
\newline
5
1
2
5^{\frac{1}{2}}
5
2
1
\newline
5
3
4
5^{\frac{3}{4}}
5
4
3
\newline
5
4
3
5^{\frac{4}{3}}
5
3
4
\newline
5
2
5^{2}
5
2
Understand the Problem:
Understand the problem. We need to simplify the expression
5
×
5
3
\sqrt{5} \times \sqrt{5^3}
5
×
5
3
.
Rewrite in Exponent Form:
Rewrite the square roots in exponent form.
5
\sqrt{5}
5
can be written as
5
1
/
2
5^{1/2}
5
1/2
and
5
3
\sqrt{5^3}
5
3
can be written as
(
5
3
)
1
/
2
(5^3)^{1/2}
(
5
3
)
1/2
.
Apply Exponent Rule:
Apply the exponent rule
(
a
n
)
m
=
a
n
∗
m
(a^n)^m = a^{n*m}
(
a
n
)
m
=
a
n
∗
m
to the second term.
\newline
(
5
3
)
1
/
2
=
5
3
∗
(
1
/
2
)
=
5
3
/
2
(5^3)^{1/2} = 5^{3*(1/2)} = 5^{3/2}
(
5
3
)
1/2
=
5
3
∗
(
1/2
)
=
5
3/2
.
Multiply Expressions:
Multiply the two expressions.
5
1
2
×
5
3
2
5^{\frac{1}{2}} \times 5^{\frac{3}{2}}
5
2
1
×
5
2
3
.
Apply Exponent Rule:
Apply the exponent rule
a
m
×
a
n
=
a
m
+
n
a^m \times a^n = a^{m+n}
a
m
×
a
n
=
a
m
+
n
when multiplying two exponents with the same base.
\newline
5
1
2
+
3
2
=
5
4
2
5^{\frac{1}{2} + \frac{3}{2}} = 5^{\frac{4}{2}}
5
2
1
+
2
3
=
5
2
4
.
Simplify Exponent:
Simplify the exponent.
5
4
2
=
5
2
5^{\frac{4}{2}} = 5^2
5
2
4
=
5
2
.
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Question
Simplify.
\newline
8
1
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2
81^{\frac{1}{2}}
8
1
2
1
\newline
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(
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Question
Simplify. Assume all variables are positive.
\newline
w
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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.
\newline
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Simplify. Assume all variables are positive.
\newline
(
2
r
1
3
)
8
(2r^{\frac{1}{3}})^8
(
2
r
3
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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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
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Posted 1 year ago
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