Math Problem Statement

Which expression is equivalent to \(\sqrt[3]{15^5}\)?

Solution

The problem asks to determine which expression is equivalent to 1553\sqrt[3]{15^5}.

Solution:

  1. Recall that the cube root of a number aba^b can be expressed as ab/3a^{b/3}. So, 1553=155/3\sqrt[3]{15^5} = 15^{5/3}.

  2. Comparing the given options:

    • 15215^2 corresponds to 15215^2, which is not the same as 155/315^{5/3}.
    • 15815^8 corresponds to 15815^8, which is also not equivalent.
    • 153/515^{3/5} represents 153/515^{3/5}, not 155/315^{5/3}.
    • 155/315^{5/3} matches exactly.

Correct Answer:

The correct answer is 155/315^{5/3}.

Would you like a breakdown of exponent rules or further clarification?


Here are 5 related questions to expand your understanding:

  1. How would you simplify 1664\sqrt[4]{16^6}?
  2. What is the difference between x23\sqrt[3]{x^2} and x2/3x^{2/3}?
  3. If xa/bx^{a/b} is given, how can it be rewritten in terms of roots and powers?
  4. What happens if the numerator of the fractional exponent is greater than the denominator?
  5. Why does am/n=amna^{m/n} = \sqrt[n]{a^m} hold for fractional exponents?

Tip: Fractional exponents provide a convenient way to write roots and powers together, which simplifies many mathematical operations!

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Math Problem Analysis

Mathematical Concepts

Exponents
Fractional Exponents
Roots

Formulas

\(\sqrt[n]{a^m} = a^{m/n}\)

Theorems

Properties of Exponents

Suitable Grade Level

Grades 9-10