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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 5

Evaluate each exponential expression in Exercises 1–22. −26

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1
Identify the expression given: \(-2^6\). Notice that the exponent applies only to the base 2, not to the negative sign, because there are no parentheses around the -2.
Recall the order of operations: exponents are evaluated before multiplication or applying the negative sign. So first, calculate \$2^6$.
Calculate \$2^6$ by multiplying 2 by itself 6 times: \(2 \times 2 \times 2 \times 2 \times 2 \times 2\).
After finding the value of \$2^6$, apply the negative sign in front of the result, which means multiply the result by -1.
Write the final expression as \(- (2^6)\) and simplify to get the value of the original expression.

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주요 개념

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

Order of Operations

The order of operations dictates the sequence in which mathematical operations are performed. Exponents are evaluated before multiplication or negation. In the expression −2^6, the exponent applies only to 2, and the negative sign is applied afterward.
추천 영상:
8:38
Performing Row Operations on Matrices

Exponents

Exponents represent repeated multiplication of a base number. For example, 2^6 means multiplying 2 by itself six times (2 × 2 × 2 × 2 × 2 × 2). Understanding how to compute powers is essential for evaluating exponential expressions.
추천 영상:
04:06
Rational Exponents

Negative Sign and Exponents

A negative sign in front of a base with an exponent can change the result depending on parentheses. Without parentheses, −2^6 means the negative of 2^6, resulting in −64. With parentheses, (−2)^6 means raising −2 to the sixth power, resulting in a positive value.
추천 영상:
7:39
Introduction to Exponent Rules