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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 29

Find each product. (14r-1)(17r+2)

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1
Identify the two binomials to be multiplied: \((14r - 1)\) and \((17r + 2)\).
Apply the distributive property (also known as the FOIL method) to multiply each term in the first binomial by each term in the second binomial: First, Outer, Inner, Last.
Multiply the First terms: \(14r \times 17r\).
Multiply the Outer terms: \(14r \times 2\) and the Inner terms: \(-1 \times 17r\).
Multiply the Last terms: \(-1 \times 2\), then combine all these products and simplify by combining like terms.

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주요 개념

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

Distributive Property

The distributive property allows you to multiply a single term by each term inside a parenthesis. It states that a(b + c) = ab + ac. This property is essential for expanding expressions like (14r - 1)(17r + 2) by multiplying each term in the first parenthesis by each term in the second.
추천 영상:
가이드 코스
04:15
Multiply Polynomials Using the Distributive Property

Combining Like Terms

After expanding an expression, combining like terms involves adding or subtracting terms that have the same variable raised to the same power. This simplifies the expression into a more manageable form, such as combining terms with 'r' or constant terms.
추천 영상:
5:22
Combinations

Multiplying Binomials

Multiplying binomials involves applying the distributive property twice or using the FOIL method (First, Outer, Inner, Last) to multiply each term in the first binomial by each term in the second. This process results in a polynomial expression.
추천 영상:
가이드 코스
04:15
Multiply Polynomials Using the Distributive Property