Math Problem Statement
Solution
The mathematical expression in the image is:
[ \sqrt[3]{7xy^2} \cdot \sqrt[3]{11x^{10}} ]
Step-by-step Solution:
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Combine the cube roots: Using the property of exponents: [ \sqrt[3]{a} \cdot \sqrt[3]{b} = \sqrt[3]{a \cdot b}, ] we can combine the two cube roots: [ \sqrt[3]{7xy^2} \cdot \sqrt[3]{11x^{10}} = \sqrt[3]{(7xy^2)(11x^{10})}. ]
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Multiply the terms inside the cube root: Multiply the constants and the variables: So the expression becomes:
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Simplify the cube root: To simplify, look for terms that can be expressed as cubes:
- can be split as , since , which is a perfect cube.
- The rest (, , and 77) remain under the cube root.
Therefore: [ \sqrt[3]{77x^{11}y^2} = x^3 \cdot \sqrt[3]{77x^2y^2}. ]
Final Answer:
Let me know if you would like further explanation or have additional questions!
Here are five related questions to deepen your understanding:
- How do cube roots differ from square roots when simplifying expressions?
- Why can terms like be factored out from cube roots?
- Can or be further simplified in this problem? Why or why not?
- What are other examples of expressions involving cube roots that can be simplified similarly?
- How would this change if it were a fourth root instead of a cube root?
Tip: Always look for perfect powers (like ) when simplifying roots to make expressions more compact!
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Math Problem Analysis
Mathematical Concepts
Algebra
Exponentiation
Radicals
Formulas
\( \sqrt[n]{a} \cdot \sqrt[n]{b} = \sqrt[n]{a \cdot b} \)
Theorems
Properties of exponents
Simplifying cube roots
Suitable Grade Level
Grades 9-12