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Choose the correct simplification of the expression [tex]\left(5 x y^5\right)^2\left(y^3\right)^4[/tex].

A. [tex]25 x^2 y^{22}[/tex]
B. [tex]10 x^2 y^{22}[/tex]
C. [tex]25 x^3 y^{14}[/tex]
D. [tex]10 x^3 y^{14}[/tex]

Answer :

To simplify the expression [tex]\((5xy^5)^2(y^3)^4\)[/tex], let's go through it step by step:

1. Simplify [tex]\((5xy^5)^2\)[/tex]:
- When you raise a power to another power, you multiply the exponents.
- For the coefficient [tex]\(5\)[/tex]: [tex]\((5)^2 = 25\)[/tex].
- For [tex]\(x\)[/tex]: [tex]\(x^1\)[/tex] becomes [tex]\(x^2\)[/tex] after applying the power.
- For [tex]\(y^5\)[/tex]: [tex]\((y^5)^2 = y^{5 \times 2} = y^{10}\)[/tex].
- So, [tex]\((5xy^5)^2 = 25x^2y^{10}\)[/tex].

2. Simplify [tex]\((y^3)^4\)[/tex]:
- Applying the power rule, [tex]\((y^3)^4 = y^{3 \times 4} = y^{12}\)[/tex].

3. Combine the simplified expressions:
- Now, multiply the two results: [tex]\(25x^2y^{10} \times y^{12}\)[/tex].
- Keep the coefficient: [tex]\(25\)[/tex].
- Since there is no other [tex]\(x\)[/tex] term, [tex]\(x^2\)[/tex] stays the same.
- For [tex]\(y\)[/tex], apply the rule of multiplying powers with the same base, which is to add the exponents: [tex]\(y^{10} \times y^{12} = y^{10 + 12} = y^{22}\)[/tex].

Putting it all together, the simplified expression is:

[tex]\[ 25x^2y^{22} \][/tex]

So, the correct answer is [tex]\(25 x^2 y^{22}\)[/tex].

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