What is the simplified form of [tex]\(\sqrt{\frac{2160 x^8}{60 x^2}}\)[/tex]? Assume [tex]\(x \neq 0\)[/tex].

A. [tex]\(36 x^3\)[/tex]
B. [tex]\(36 x^2\)[/tex]
C. [tex]\(6 x^3\)[/tex]
D. [tex]\(6 x^2\)[/tex]



Answer :

To simplify the expression [tex]\(\sqrt{\frac{2160 x^8}{60 x^2}}\)[/tex], we'll go through the process step by step:

1. Simplify the fraction inside the square root:

[tex]\[ \frac{2160 x^8}{60 x^2} \][/tex]

2. Simplifying the numerical part:

[tex]\[ \frac{2160}{60} \][/tex]

Perform the division:

[tex]\[ \frac{2160}{60} = 36 \][/tex]

3. Combine the simplified numerical part with the variable part:

So now we have:

[tex]\[ 36 \cdot \frac{x^8}{x^2} \][/tex]

4. Simplify the variable part:

Subtract the exponents (using [tex]\(a^m / a^n = a^{m-n}\)[/tex]):

[tex]\[ \frac{x^8}{x^2} = x^{8-2} = x^6 \][/tex]

5. Combine this with the numerical part:

This gives us:

[tex]\[ 36 x^6 \][/tex]

6. Now, we need to take the square root of the entire expression:

[tex]\[ \sqrt{36 x^6} \][/tex]

7. Simplify the square root of the numerical part:

[tex]\[ \sqrt{36} = 6 \][/tex]

8. Simplify the square root of the variable part:

[tex]\[ \sqrt{x^6} = x^{6/2} = x^3 \][/tex]

9. Combine these results:

[tex]\[ 6 x^3 \][/tex]

So, the simplified form of [tex]\(\sqrt{\frac{2160 x^8}{60 x^2}}\)[/tex] is:

[tex]\[ 6 x^3 \][/tex]

Thus, the answer is [tex]\(6 x^3\)[/tex], which matches one of the given options.