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Ch. P - Fundamental Concepts of Algebra
Blitzer - College Algebra 8th Edition
Blitzer8th EditionCollege AlgebraISBN: 9780136970514당신이 사용하는 게 아니라요?교과서 변경
1장, 문제 89

In Exercises 83–90, perform the indicated operation or operations. (2x−7)5/(2x−7)3

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1
Identify the given expression: \((2x - 7)^5 / (2x - 7)^3\). This is a division of exponential expressions with the same base \((2x - 7)\).
Recall the property of exponents: \(\frac{a^m}{a^n} = a^{m-n}\), where \(a\) is the base, and \(m\) and \(n\) are the exponents. Apply this property to simplify the expression.
Subtract the exponents: \(5 - 3\). This gives the new exponent for the base \((2x - 7)\).
Rewrite the simplified expression as \((2x - 7)^2\).
The final simplified expression is \((2x - 7)^2\). You can leave it in this form or expand it further if needed.

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주요 개념

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

Exponents and Power Rules

Understanding exponents is crucial in algebra, particularly the power rules which state that when dividing like bases, you subtract the exponents. For example, a^m / a^n = a^(m-n). This rule simplifies expressions involving powers and is essential for solving the given problem.
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Power Rules

Simplifying Algebraic Expressions

Simplifying algebraic expressions involves reducing them to their simplest form. This process often includes combining like terms and applying exponent rules. In the context of the given question, simplifying (2x−7)^5/(2x−7)^3 requires applying the exponent subtraction rule to achieve a more manageable expression.
추천 영상:
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Simplifying Algebraic Expressions

Polynomial Functions

Polynomial functions are expressions that involve variables raised to whole number exponents. The expression (2x−7) is a polynomial, and understanding its behavior, including how to manipulate it through operations like division, is fundamental in algebra. This knowledge helps in recognizing the structure of the expression and applying the correct operations.
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Introduction to Polynomial Functions