Math Problem Statement
Solution
Let's solve the expression .
Step 1: Simplify
We know: So, [ \sqrt[3]{16} = \sqrt[3]{2^4} = 2^{\frac{4}{3}} ]
Step 2: Simplify
We know: So, [ \sqrt[3]{128} = \sqrt[3]{2^7} = 2^{\frac{7}{3}} ]
Step 3: Substitute into the original expression
Now, substitute these into the original expression:
Step 4: Factor out
We can factor out from both terms: This simplifies to:
Step 5: Match to the answer choices
We have simplified the expression to , which corresponds to the first option:
Therefore, the correct answer is the first option.
Would you like further details or have any questions?
Here are 5 related questions to explore further:
- How do you simplify cube roots of larger numbers?
- Can cube roots be simplified similarly to square roots?
- What happens when negative numbers are involved with cube roots?
- How do you handle fractional exponents in more complex problems?
- What is the general method for factoring expressions like this?
Tip: Remember, cube roots of powers of 2 can often be simplified by expressing the number as a power of 2 and applying fractional exponents.
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Math Problem Analysis
Mathematical Concepts
Algebra
Radicals
Cube Roots
Simplification
Formulas
∛a = a^(1/3)
a^(m/n) = (a^m)^(1/n)
Theorems
Laws of Exponents
Radical Simplification
Suitable Grade Level
Grades 10-12