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Let’s check out your problem:
Select all the expressions that are equivalent to
5
−
9
×
5
−
5
5^{-9} \times 5^{-5}
5
−
9
×
5
−
5
.
\newline
Multi-select Choices:
\newline
(A)
1
5
45
\frac{1}{5^{45}}
5
45
1
\newline
(B)
1
5
14
\frac{1}{5^{14}}
5
14
1
\newline
(C)
1
5
−
14
\frac{1}{5^{-14}}
5
−
14
1
\newline
(D)
5
−
14
5^{-14}
5
−
14
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Math Problems
Algebra 1
Simplify exponential expressions using exponent rules
Full solution
Q.
Select all the expressions that are equivalent to
5
−
9
×
5
−
5
5^{-9} \times 5^{-5}
5
−
9
×
5
−
5
.
\newline
Multi-select Choices:
\newline
(A)
1
5
45
\frac{1}{5^{45}}
5
45
1
\newline
(B)
1
5
14
\frac{1}{5^{14}}
5
14
1
\newline
(C)
1
5
−
14
\frac{1}{5^{-14}}
5
−
14
1
\newline
(D)
5
−
14
5^{-14}
5
−
14
Combine exponents of base:
Step
1
1
1
: Combine the exponents of the same base.
\newline
5
−
9
×
5
−
5
=
5
(
−
9
+
−
5
)
=
5
−
14
5^{-9} \times 5^{-5} = 5^{(-9 + -5)} = 5^{-14}
5
−
9
×
5
−
5
=
5
(
−
9
+−
5
)
=
5
−
14
Convert negative exponent:
Step
2
2
2
: Convert the negative exponent to a positive exponent in the denominator.
\newline
5
−
14
=
1
5
14
5^{-14} = \frac{1}{5^{14}}
5
−
14
=
5
14
1
Compare with choices:
Step
3
3
3
: Compare the result with the given choices.
\newline
1
5
14
\frac{1}{5^{14}}
5
14
1
matches choice (B)
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Simplify. Express your answer using positive exponents.
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⋅
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Question
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\newline
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