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The expression 
root(5)(7^(2))*root(5)(7^(2)) is equivalent to

7^((4)/(5))

49^((4)/(5))

7^((4)/(25))

49^((4)/(25))

The expression 725725 \sqrt[5]{7^{2}} \cdot \sqrt[5]{7^{2}} is equivalent to\newline745 7^{\frac{4}{5}} \newline4945 49^{\frac{4}{5}} \newline7425 7^{\frac{4}{25}} \newline49425 49^{\frac{4}{25}}

Full solution

Q. The expression 725725 \sqrt[5]{7^{2}} \cdot \sqrt[5]{7^{2}} is equivalent to\newline745 7^{\frac{4}{5}} \newline4945 49^{\frac{4}{5}} \newline7425 7^{\frac{4}{25}} \newline49425 49^{\frac{4}{25}}
  1. Understand the problem: Understand the problem.\newlineWe need to simplify the expression 725\sqrt[5]{7^{2}}\cdot725\sqrt[5]{7^{2}}. This involves two fifth roots of 727^{2} being multiplied together.
  2. Use property of exponents: Use the property of exponents for roots.\newlineThe fifth root of a number is the same as raising that number to the power of 15\frac{1}{5}. So, 725\sqrt[5]{7^{2}} is the same as (72)15(7^{2})^{\frac{1}{5}}.
  3. Apply power of power rule: Apply the power of a power rule.\newlineWhen you raise a power to a power, you multiply the exponents. So, (72)15(7^{2})^{\frac{1}{5}} becomes 72157^{2*\frac{1}{5}}, which simplifies to 7257^{\frac{2}{5}}.
  4. Multiply the expressions: Multiply the expressions.\newlineNow we multiply 72/57^{2/5} by itself: 72/5×72/57^{2/5} \times 7^{2/5}.
  5. Apply product of powers rule: Apply the product of powers rule.\newlineWhen you multiply powers with the same base, you add the exponents. So, 72/5×72/57^{2/5} \times 7^{2/5} becomes 7(2/5)+(2/5)7^{(2/5) + (2/5)}, which simplifies to 74/57^{4/5}.
  6. Check answer choices: Check the answer choices.\newlineWe have simplified the expression to 7457^{\frac{4}{5}}. Now we compare this with the given answer choices.
  7. Select correct answer: Select the correct answer.\newlineThe correct answer is 7(45)7^{(\frac{4}{5})}, which matches one of the given answer choices.

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