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Chapter 6: Problem 40

For the following problems, factor the polynomials. $$ Q x+Q y $$

Short Answer

Expert verified
Answer: The factored form of the polynomial is \(Q(x+y)\).

Step by step solution

01

Identify Common Factors

In this case, the polynomial is \(Qx + Qy\). The common factor in both terms is \(Q\).
02

Apply the Distributive Property

Now that we have identified the common factor, we can apply the distributive property to factor it out. The distributive property states that \(a(b+c) = ab + ac\). In our case, we can rewrite our polynomial as \(Q(x+y)\). So the factored polynomial is: $$ Q(x+y) $$

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Distributive Property
The distributive property is a powerful and essential algebraic property used in polynomial factoring. This property allows you to simplify expressions and factor out common terms, aiding in operations like addition and multiplication within brackets. The distributive property is formally expressed as:\[ a(b + c) = ab + ac \]Understanding this concept allows you to also approach expressions in reverse. When you see something like \(ab + ac\), you can recognize it as potentially being factored into \(a(b+c)\). This technique comes in handy when you're simplifying polynomials or finding patterns in algebraic expressions.
Common Factors
Finding common factors in algebraic expressions is a crucial step in the factoring process. A common factor is a term or expression that divides each term in the polynomial without a remainder.In our example, \(Qx + Qy\), we identify \(Q\) as the common factor because it is present in both terms. Steps to Identify Common Factors:
  • Look for terms that repeatedly appear in each component of the polynomial.
  • Factor out numbers, variables, or combinations thereof that are shared among all terms.
  • Verify by dividing back to ensure you receive the original polynomial each time.
By understanding and utilizing common factors, you simplify complicated expressions, making them easier to handle in mathematical operations.
Factoring Techniques
Factoring techniques are methods used to express a polynomial as a product of simpler polynomials. By breaking down complex expressions, you can solve equations more easily or simplify expressions for analysis.

Basic Techniques

  • Factoring out the greatest common factor: This is the most straightforward method where you identify and factor out the largest common factor from all terms.
  • Apply other methods such as grouping or special binomials depending on the complexity of the polynomial.
For the exercise, we employed the simplest technique of factoring out the greatest common factor, which was \(Q\), to rewrite \(Qx + Qy\) as \(Q(x+y)\). These techniques are foundational and will be utilized in advanced algebraic manipulations.

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