Select all the correct answers.

Which expressions are equivalent to the given expression?

[tex]\[ y^{-8} y^3 x^0 x^{-2} \][/tex]

A. [tex]\[ y^{-24} \][/tex]
B. [tex]\[ \frac{x^2}{y^{11}} \][/tex]
C. [tex]\[ \frac{1}{x^2 y^5} \][/tex]
D. [tex]\[ x^2 y^{-11} \][/tex]
E. [tex]\[ \frac{1}{y^{24}} \][/tex]
F. [tex]\[ x^{-2} y^{-5} \][/tex]



Answer :

Let's analyze each of the given expressions to determine if they are equivalent to the expression [tex]\( y^{-8} y^3 x^0 x^{-2} \)[/tex].

First, simplify the given expression [tex]\( y^{-8} y^3 x^0 x^{-2} \)[/tex]:

1. Combine the powers of [tex]\( y \)[/tex]:
[tex]\[ y^{-8} \cdot y^3 = y^{-8 + 3} = y^{-5} \][/tex]

2. Combine the powers of [tex]\( x \)[/tex]:
[tex]\[ x^0 \cdot x^{-2} = x^{0-2} = x^{-2} \][/tex]

So, the given expression simplifies to:
[tex]\[ y^{-5} \cdot x^{-2} = x^{-2} y^{-5} \][/tex]

Next, let's check the given expressions one by one:

1. [tex]\( y^{-24} \)[/tex]:
[tex]\[ \text{This is not equivalent because it does not account for } x \text{ or combine to } y^{-5}. \][/tex]
It is incorrect.

2. [tex]\( \frac{x^2}{y^{11}} \)[/tex]:
[tex]\[ \text{This expression cannot be reformulated to } x^{-2} y^{-5}. \][/tex]
It is incorrect.

3. [tex]\( \frac{1}{x^2 y^5} \)[/tex]:
[tex]\[ \frac{1}{x^2 y^5} \text{ is equivalent to } x^{-2} y^{-5} \text{, which matches our simplified expression}. \][/tex]
It is correct.

4. [tex]\( x^2 y^{-11} \)[/tex]:
[tex]\[ \text{This has different exponents of } x \text{ and } y \text{.} \][/tex]
It is incorrect.

5. [tex]\( \frac{1}{y^{24}} \)[/tex]:
[tex]\[ \text{This does not have the } x^{-2} \text{ term and does not combine to } y^{-5}. \][/tex]
It is incorrect.

6. [tex]\( x^{-2} y^{-5} \)[/tex]:
[tex]\[ \text{This is exactly our simplified expression.} \][/tex]
It is correct.

Therefore, the correct answers are:
[tex]\[ \boxed{\frac{1}{x^2 y^5}, \quad x^{-2} y^{-5}} \][/tex]