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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 2

Determine whether each statement is true or false. If false, correct the right side of the equation. (y2)(y5) = y7

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Recall the product rule for exponents: when multiplying expressions with the same base, you add the exponents. Mathematically, this is written as \(a^{m} \times a^{n} = a^{m+n}\).
Identify the base and exponents in the given expression: \((y^{2})(y^{5})\). Here, the base is \(y\), and the exponents are 2 and 5.
Apply the product rule by adding the exponents: \(2 + 5 = 7\).
Rewrite the expression using the sum of the exponents: \((y^{2})(y^{5}) = y^{7}\).
Conclude that the original statement is true because the right side correctly represents the product of the left side using the product rule for exponents.

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주요 개념

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

Laws of Exponents

The laws of exponents govern how to simplify expressions involving powers of the same base. Specifically, when multiplying like bases, you add their exponents: a^m * a^n = a^(m+n). This rule is essential for correctly simplifying expressions like (y^2)(y^5).
추천 영상:
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Rational Exponents

Base Consistency in Exponentiation

For exponent rules to apply directly, the bases must be identical. In the expression (y^2)(y^5), both terms have the base y, allowing the exponents to be combined. Recognizing the base ensures proper application of exponent laws.
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Solving Exponential Equations Using Like Bases

Evaluating True or False Statements in Algebra

Determining the truth of algebraic statements involves verifying if both sides of an equation are equivalent under given rules. If false, the correct form must be identified by applying relevant algebraic principles, such as exponent laws in this case.
추천 영상:
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Evaluating Algebraic Expressions