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Which shows the following expression after the negative exponents have been eliminated?

[tex]\[
\frac{x y^{-6}}{x^{-4} y^2}, \quad x \neq 0, \, y \neq 0
\][/tex]

A. [tex]\(\frac{x^4}{y^2 \cdot x^6 y^6}\)[/tex]

B. [tex]\(\frac{x x^4}{y^2 y^6}\)[/tex]

C. [tex]\(\frac{x^4}{y^2 x y^6}\)[/tex]

D. [tex]\(\frac{x^4 y^2}{x y^6}\)[/tex]


Sagot :

To start solving the given expression and simplifying it, we need to follow these steps:

[tex]\[ \frac{x y^{-6}}{x^{-4} y^2} \][/tex]

1. Dealing with Negative Exponents:
The negative exponents in the expression can be flipped to the other part of the fraction. Applying this property, [tex]\( a^{-b} = \frac{1}{a^b} \)[/tex]:

[tex]\[ \frac{x}{y^6} \div \frac{1}{x^4 \cdot y^2} \][/tex]

The division by a fraction is equivalent to multiplying by its reciprocal. Therefore:

[tex]\[ \frac{x}{y^6} \times \frac{x^4 \cdot y^2}{1} \][/tex]

2. Simplifying the Fractions:
Now you multiply the numerators together and the denominators together:

[tex]\[ \frac{x \cdot x^4 \cdot y^2}{y^6 \cdot 1} \][/tex]

3. Combining Like Terms:
When multiplying terms with the same base, you add their exponents. So:

[tex]\[ x^{1+4} = x^5 \quad \text{and} \quad y^{2+6} = y^8 \][/tex]

Therefore:

[tex]\[ \frac{x^5}{y^8} \][/tex]

This is the simplified form of the given expression after eliminating the negative exponents. The correct simplified form of the given expression is thus:

[tex]\[ \frac{x^5}{y^8} \][/tex]

Therefore, the final simplified expression shows:

[tex]\[ \frac{x^5}{y^8} \][/tex]

This represents the original mathematical operation with negative exponents eliminated and simplified correctly.