please help :( I know that [tex]2^\frac{6}{5}[/tex] is the same as [tex]2\sqrt[5]{2}[/tex] but I don't understand how to get [tex]2\sqrt[5]{2}[/tex] from [tex]2^\frac{6}{5}[/tex]

Respuesta :

Answer:

[tex]\displaystyle 2^{\frac{6}{5}}=2\sqrt[5]{2}[/tex]

Step-by-step explanation:

Fractional Exponents

An expression like

[tex]\displaystyle a^{\frac{n}{m}}[/tex]

can be expressed as a radical of the form:

[tex]\sqrt[m]{a^n}[/tex]

We have the expression:

[tex]\displaystyle 2^{\frac{6}{5}}[/tex]

Its equivalent radical form is:

[tex]\displaystyle 2^{\frac{6}{5}}=\sqrt[5]{2^6}[/tex]

Since the exponent is greater than the index of the radical, we can take 2 out of it by following the procedure:

[tex]\sqrt[5]{2^6}=\sqrt[5]{2^5\cdot 2}[/tex]

Taking out [tex]2^5[/tex] from the radical:

[tex]\sqrt[5]{2^6}=2\sqrt[5]{2}[/tex]

Thus:

[tex]\displaystyle 2^{\frac{6}{5}}=2\sqrt[5]{2}[/tex]