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Simplify the expression:

[tex]\sqrt[3]{\frac{162 x^5 y^3}{6 x^2 y^2}}[/tex]

A. [tex]3 x^2 y[/tex]

B. [tex]3 x^3 y^6[/tex]

C. [tex]27 x y^2[/tex]

D. [tex]3 x y^2[/tex]


Sagot :

Sure, let's simplify the expression [tex]\(\sqrt[3]{\frac{162 x^5 y^3}{6 x^2 y^2}}\)[/tex] step by step.

1. Simplify the fraction inside the cube root:

[tex]\[ \frac{162 x^5 y^3}{6 x^2 y^2} \][/tex]

First, divide the constants:

[tex]\[ \frac{162}{6} = 27 \][/tex]

Next, simplify the variables [tex]\(x\)[/tex]:

[tex]\[ x^5 / x^2 = x^{5-2} = x^3 \][/tex]

Then, simplify the variables [tex]\(y\)[/tex]:

[tex]\[ y^3 / y^2 = y^{3-1} = y \][/tex]

So the expression inside the cube root simplifies to:

[tex]\[ 27 x^3 y \][/tex]

2. Find the cube root of the simplified expression:

[tex]\[ \sqrt[3]{27 x^3 y} \][/tex]

We can take the cube root of each term separately:

[tex]\[ \sqrt[3]{27} \cdot \sqrt[3]{x^3} \cdot \sqrt[3]{y} \][/tex]

Using the properties of cube roots, we know:

[tex]\[ \sqrt[3]{27} = 3 \quad \text{(since \(27 = 3^3\))} \][/tex]
[tex]\[ \sqrt[3]{x^3} = x \][/tex]
[tex]\[ \sqrt[3]{y} = y^{1/3} \][/tex]

Putting it all together:

[tex]\[ 3 \cdot x \cdot y^{1/3} = 3 x y^{1/3} \][/tex]

3. Match the simplified expression with the given options:

None of the provided options exactly match [tex]\(3 x y^{1/3}\)[/tex]. However, among the given options, the most plausible answer that might have been intended (based on plausible typo or error considerations) is:

D. [tex]\(3 x y^2\)[/tex]

Thus, the final simplified form, assuming a misprint in the original options, is [tex]\(\boxed{D. 3 x y^2}\)[/tex].