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What is the expression in radical form?

[tex]\[ \left(2 m^2 n\right)^{\frac{3}{2}} \][/tex]

A. [tex]\(\sqrt[3]{4 m^4 n^2}\)[/tex]

B. [tex]\(\sqrt{8 m^6 n^3}\)[/tex]

C. [tex]\(\sqrt{2 m^6 n^3}\)[/tex]

D. [tex]\(\sqrt[3]{4 m^2 n^2}\)[/tex]


Sagot :

To convert each of the given expressions into radical form, follow these steps.

### First Expression:
[tex]\[ (2 m^2 n)^{\frac{3}{2}} \][/tex]

In radical form, an exponent of [tex]\(\frac{3}{2}\)[/tex] indicates a square root (since the denominator is 2) and then cubing the result (since the numerator is 3). Therefore:
[tex]\[ (2 m^2 n)^{\frac{3}{2}} = \sqrt{(2 m^2 n)^3} = \sqrt{2^3 m^6 n^3} = \sqrt{8 m^6 n^3} \][/tex]

### Second Expression:
[tex]\[ \sqrt[3]{4 m^4 n^2} \][/tex]

In radical form, [tex]\(\sqrt[3]{4 m^4 n^2}\)[/tex] represents the cube root. Therefore:
[tex]\[ \sqrt[3]{4 m^4 n^2} = (4 m^4 n^2)^{\frac{1}{3}} \][/tex]

To simplify further:
[tex]\[ \sqrt[3]{4 m^4 n^2} = \sqrt[3]{4 \cdot m^4 \cdot n^2} = \sqrt[3]{4} \cdot \sqrt[3]{m^4} \cdot \sqrt[3]{n^2} = \sqrt[3]{4} \cdot m^{4/3} \cdot n^{2/3} \][/tex]

### Third Expression:
[tex]\[ \sqrt{8 m^6 n^3} \][/tex]

In radical form, this expression is already simplified and remains:
[tex]\( \sqrt{8 m^6 n^3} \)[/tex]

### Fourth Expression:
[tex]\[ \sqrt{2 m^6 n^3} \][/tex]

Similar to the third expression, this is already in radical form and remains:
[tex]\( \sqrt{2 m^6 n^3} \)[/tex]

### Fifth Expression:
[tex]\[ \sqrt[3]{4 m^2 n^2} \][/tex]

In radical form, [tex]\(\sqrt[3]{4 m^2 n^2}\)[/tex] represents the cube root. Therefore:
[tex]\[ \sqrt[3]{4 m^2 n^2} = (4 m^2 n^2)^{\frac{1}{3}} \][/tex]

To simplify further,
[tex]\[ \sqrt[3]{4 m^2 n^2} = \sqrt[3]{4 \cdot m^2 \cdot n^2} = \sqrt[3]{4} \cdot \sqrt[3]{m^2} \cdot \sqrt[3]{n^2} = \sqrt[3]{4} \cdot m^{2/3} \cdot n^{2/3} \][/tex]

### Conclusion:

After finding the radical forms for each expression, we have:
1. [tex]\((2 m^2 n)^{\frac{3}{2}} = \sqrt{8 m^6 n^3}\)[/tex]
2. [tex]\(\sqrt[3]{4 m^4 n^2} = \sqrt[3]{4} \cdot m^{4/3} \cdot n^{2/3}\)[/tex]
3. [tex]\(\sqrt{8 m^6 n^3}\)[/tex]
4. [tex]\(\sqrt{2 m^6 n^3}\)[/tex]
5. [tex]\(\sqrt[3]{4 m^2 n^2} = \sqrt[3]{4} \cdot m^{2/3} \cdot n^{2/3}\)[/tex]

Thus, the expressions in their radical forms are:
1. [tex]\(\sqrt{8 m^6 n^3}\)[/tex]
2. [tex]\(\sqrt[3]{4 m^4 n^2}\)[/tex]
3. [tex]\(\sqrt{8 m^6 n^3}\)[/tex]
4. [tex]\(\sqrt{2 m^6 n^3}\)[/tex]
5. [tex]\(\sqrt[3]{4 m^2 n^2}\)[/tex]