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Which is equivalent to [tex]\sqrt[3]{8}^{\frac{1}{4} x}[/tex]?

A. [tex]8^{\frac{3}{4} x}[/tex]
B. [tex]\sqrt[7]{8}^x[/tex]
C. [tex]\sqrt[12]{8} x[/tex]
D. [tex]8^{\frac{3}{4 x}}[/tex]


Sagot :

To determine which expression is equivalent to [tex]\(\sqrt[3]{8}^{\frac{1}{4} x}\)[/tex], we need to simplify the given expression step-by-step.

1. First, let's rewrite [tex]\(\sqrt[3]{8}\)[/tex]:
[tex]\[ \sqrt[3]{8} = 8^{\frac{1}{3}} \][/tex]

2. Now substitute this result into the original expression:
[tex]\[ \sqrt[3]{8}^{\frac{1}{4} x} = \left(8^{\frac{1}{3}}\right)^{\frac{1}{4} x} \][/tex]

3. Use the property of exponents [tex]\((a^m)^n = a^{mn}\)[/tex] to simplify the expression:
[tex]\[ \left(8^{\frac{1}{3}}\right)^{\frac{1}{4} x} = 8^{(\frac{1}{3} \cdot \frac{1}{4} x)} = 8^{\frac{x}{12}} \][/tex]

Now, we need to compare this simplified form [tex]\(8^{\frac{x}{12}}\)[/tex] to the options given:

Option 1: [tex]\(8^{\frac{3}{4} x}\)[/tex]
[tex]\[ 8^{\frac{3}{4} x} \neq 8^{\frac{x}{12}} \][/tex]

Option 2: [tex]\(\sqrt[7]{8}^x\)[/tex]
[tex]\[ \sqrt[7]{8}^x = (8^{\frac{1}{7}})^x = 8^{\frac{x}{7}} \neq 8^{\frac{x}{12}} \][/tex]

Option 3: [tex]\(\sqrt[12]{8} x\)[/tex]
[tex]\[ \sqrt[12]{8} x = (8^{\frac{1}{12}}) x \neq 8^{\frac{x}{12}} \][/tex]

Option 4: [tex]\(8^{\frac{3}{4 x}}\)[/tex]
[tex]\[ 8^{\frac{3}{4 x}} \neq 8^{\frac{x}{12}} \][/tex]

None of the given options are equivalent to [tex]\(8^{\frac{x}{12}}\)[/tex].

Thus, without any errors, the equivalent expression to [tex]\(\sqrt[3]{8}^{\frac{1}{4} x}\)[/tex] is:
[tex]\[8^{\frac{x}{12}}\][/tex]

There appears to be an oversight or missing option in the list provided.
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