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Nezavi [6.7K]
3 years ago
13

Which expressions are equivalent to the one below ? check all that apply :)

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0

Answer:

its b and e

Step-by-step explanation:

Stella [2.4K]3 years ago
5 0

Answer:

Option D and E are  equivalent to the given expression.

Step-by-step explanation:

Given : \frac{21^x}{3^x}

Solution:

\frac{21^x}{3^x}

Using identity : \frac{a^x}{b^x} = (\frac{a}{b})^x

(\frac{21}{3})^x   -- Option E

Now this can be written as  21^x = 7^x \times 3^x

Identity : a^x \times b^x = (a \cdot b)^x

\frac{7^x \times 3^x}{3^x}  -- Option D

(7)^x   -- Option D

Thus Option D and E are  equivalent to the given expression.

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