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Select the equivalent expression. (8522)4=?\left(\frac{8^{-5}}{2^{-2}}\right)^{-4}=\,?\newlineChoose 11 answer:\newline(A) 82028\frac{8^{20}}{2^{8}}\newline(B) 2689\frac{2^{6}}{8^{9}}\newline(C) 1822\frac{1}{8\cdot 2^{2}}

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Q. Select the equivalent expression. (8522)4=?\left(\frac{8^{-5}}{2^{-2}}\right)^{-4}=\,?\newlineChoose 11 answer:\newline(A) 82028\frac{8^{20}}{2^{8}}\newline(B) 2689\frac{2^{6}}{8^{9}}\newline(C) 1822\frac{1}{8\cdot 2^{2}}
  1. Identify and Apply Rule: Identify the given expression and apply the power of a quotient rule.\newlineThe power of a quotient rule states that (ab)n=anbn(\frac{a}{b})^n = \frac{a^n}{b^n}.\newlineSo, (8522)4\left(\frac{8^{-5}}{2^{-2}}\right)^{-4} becomes (85)4/(22)4\left(8^{-5}\right)^{-4} / \left(2^{-2}\right)^{-4}.
  2. Simplify Exponents: Simplify the exponents by multiplying them, since (am)n=amn(a^m)^n = a^{m*n}.\newlineFor the numerator, (85)4(8^{-5})^{-4} becomes 8(5)(4)=8208^{(-5)*(-4)} = 8^{20}.\newlineFor the denominator, (22)4(2^{-2})^{-4} becomes 2(2)(4)=282^{(-2)*(-4)} = 2^{8}.
  3. Rewrite Simplified Expression: Rewrite the simplified expression.\newlineThe expression is now 820/288^{20} / 2^{8}.
  4. Recognize Power of 22: Recognize that 88 is a power of 22, specifically 8=238 = 2^3. This allows us to express 8208^{20} as (23)20(2^3)^{20}.
  5. Apply Power of Power Rule: Apply the power of a power rule to simplify (23)20(2^3)^{20}. The rule states that (am)n=amn(a^m)^n = a^{m*n}, so (23)20(2^3)^{20} becomes 2320=2602^{3*20} = 2^{60}.
  6. Rewrite with Simplified Numerator: Rewrite the expression with the simplified numerator.\newlineThe expression is now 260/282^{60} / 2^{8}.
  7. Apply Quotient of Powers Rule: Apply the quotient of powers rule to simplify 260/282^{60} / 2^{8}. The rule states that am/an=amna^m / a^n = a^{m-n}, so 260/282^{60} / 2^{8} becomes 2608=2522^{60-8} = 2^{52}.
  8. Recognize Simplified Form: Recognize that 2522^{52} is the simplified form of the original expression.\newlineTherefore, the equivalent expression is 2522^{52}.
  9. Match to Answer Choices: Match the simplified expression to the given answer choices.\newlineThe expression 2522^{52} is not directly listed in the answer choices, so we need to check if any of the choices are equivalent to 2522^{52}.
  10. Check for Equivalence: Check each answer choice for equivalence to 2522^{52}.
    (A) (820)/(28)(8^{20})/(2^{8}) is equivalent to 260/28=2522^{60}/2^{8} = 2^{52}, which matches our simplified expression.
    (B) (26)/(89)(2^{6})/(8^{9}) is not equivalent to 2522^{52}.
    (C) (1)/(822)(1)/(8*2^{2}) is not equivalent to 2522^{52}.
  11. Select Correct Answer: Select the correct answer choice based on the previous step.\newlineThe correct answer is (A) (820)/(28)\left(8^{20}\right)/\left(2^{8}\right), which is equivalent to 2522^{52}.

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