Question

Which of the following represents 6 x to the 3 fourths power in radical form?

Answer 1

Answer:

$\\ 6x^{\frac{3}{4}} = 6\sqrt[4]{x^{3}}$

Step-by-step explanation:

When a number is raised to a rational number like $\\ {\frac{3}{4}}$, that is, a fraction, the denominator represents the index of the radical (or commonly known as the root nth of the radical), and the numerator represents the number to which the radicand (the part of the expression inside the radical sign) is about to be raised.

Looking at $\\ 6x^{\frac{3}{4}}$, the index (root) of the radical is 4 and the numerator raises the value of x to the third power, that is,  $\\ x^{3}$. That explains the answer: six (6) times $\\ \sqrt[4]{x^{3}}$. The six (6) only multiplies the expression.

Likewise, a radical of index 5, with a radicand $\\ (x + 8)$ raised to the ninth power is represented by  $\\ \sqrt[5]{(x + 8)^{9}}$, which is equivalent to $\\ (x+8)^{\frac{9}{5}}$.

By the way, a particular case is when the index is 2, that is, $\\ x^{\frac{1}{2}}$. Here, the number 2 is omitted from the radical symbol and is represented by $\sqrt{x}$.

Answer 2

6 √x^3 - I am not sure how to write 4th root on the computer but the answer is 6 times the 4th root of x to the 3 third power.