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Ch. R - Review of Basic Concepts
Lial - College Algebra 13th Edition
Lial13th EditionCollege AlgebraISBN: 9780136881063당신이 사용하는 게 아니라요?교과서 변경
1장, 문제 141

Perform the indicated operations and/or simplify each expression. Assume all variables represent positive real numbers.
(mnm2)n2\(\frac{(∛mn\cdot∛m^2)}{∛n^2{}\)}

검증된 단계별 안내
1
Rewrite each cube root expression using fractional exponents: \(\sqrt[3]{mn} = (mn)^{1/3}\), \(\sqrt[3]{m^2} = m^{2/3}\), and \(\sqrt[3]{n^2} = n^{2/3}\).
Express the numerator as a product of powers: \((mn)^{1/3} \cdot m^{2/3} = m^{1/3} n^{1/3} \cdot m^{2/3}\).
Combine the powers of \(m\) in the numerator by adding the exponents: \(m^{1/3} \cdot m^{2/3} = m^{(1/3 + 2/3)} = m^{1}\), so the numerator becomes \(m^{1} n^{1/3}\).
Write the entire expression as a single fraction with exponents: \(\frac{m^{1} n^{1/3}}{n^{2/3}}\).
Simplify the powers of \(n\) by subtracting the exponents in the denominator from those in the numerator: \(n^{1/3 - 2/3} = n^{-1/3}\), so the expression simplifies to \(m^{1} n^{-1/3}\), which can also be written as \(\frac{m}{\sqrt[3]{n}}\).

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
3m
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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Properties of Radicals

Radicals represent roots, such as cube roots (∛). Key properties include that the product of roots can be combined under a single root if they have the same index, e.g., ∛a * ∛b = ∛(ab). Understanding these properties allows simplification of expressions involving multiple radicals.
추천 영상:
05:20
Expanding Radicals

Simplifying Radical Expressions

Simplifying radicals involves rewriting expressions to their simplest form by factoring and reducing powers inside the root. For example, variables with exponents can be manipulated using root and exponent rules to combine or reduce terms under the radical.
추천 영상:
05:45
Radical Expressions with Fractions

Exponent Rules with Radicals

Radicals can be expressed as fractional exponents, such as ∛x = x^(1/3). Using exponent rules, like multiplying powers when bases are the same and dividing powers when dividing like bases, helps simplify complex radical expressions efficiently.
추천 영상:
7:39
Introduction to Exponent Rules