In Exercises 1–10, factor out the greatest common factor. x(2x+1)+4(2x+1)

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Step 1: Identify the common factor in the given expression. Notice that both terms, x(2x+1) and 4(2x+1), share the binomial (2x+1) as a common factor.

Step 2: Factor out the greatest common factor, which is (2x+1). This means you rewrite the expression as (2x+1)(x+4).

Step 3: Verify your factorization by distributing (2x+1) back into the terms (x+4). This should return the original expression: x(2x+1) + 4(2x+1).

Step 4: Simplify the factored form if necessary. In this case, the factored form (2x+1)(x+4) is already simplified.

Step 5: Conclude that the expression has been successfully factored, and the greatest common factor has been extracted.

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주요 개념

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

Greatest Common Factor (GCF)

The Greatest Common Factor is the largest expression that divides two or more terms without leaving a remainder. In algebra, identifying the GCF is crucial for simplifying expressions and factoring polynomials. For example, in the expression x(2x+1) + 4(2x+1), the GCF is (2x+1), as it is common to both terms.

Factoring

Factoring is the process of breaking down an expression into simpler components, or factors, that when multiplied together yield the original expression. This technique is essential in algebra for simplifying expressions and solving equations. In the given expression, factoring out the GCF allows us to rewrite it in a more manageable form.

Distributive Property

The Distributive Property states that a(b + c) = ab + ac, allowing us to distribute a factor across terms within parentheses. This property is fundamental in algebra for expanding expressions and is also used in reverse when factoring. In the expression x(2x+1) + 4(2x+1), recognizing the common factor enables us to apply this property effectively.