Not expanding the first term

Oct 13, 2025 by wbrum.org 66 views

Introduction

In algebra, factoring is a crucial concept that helps us simplify complex expressions and solve equations. When dealing with quadratic expressions, factoring can be a powerful tool to find the roots and understand the behavior of the function. In this article, we will explore the factors of the expression (a+2b)2-(a+2b(3a-7b). We will break down the expression, apply the distributive property, and simplify the resulting expression to find its factors.

Understanding the Expression

The given expression is (a+2b)2-(a+2b(3a-7b). To factor this expression, we need to understand its structure and identify the common factors. The expression consists of two terms: (a+2b)2 and (a+2b(3a-7b). We can start by expanding the first term using the formula (x+y)2 = x2 + 2xy + y2.

Expanding the First Term

Using the formula (x+y)2 = x2 + 2xy + y2, we can expand the first term (a+2b)2 as follows:

(a+2b)2 = a2 + 2(a)(2b) + (2b)2 = a2 + 4ab + 4b2

Expanding the Second Term

Now, let's expand the second term (a+2b(3a-7b) using the distributive property. The distributive property states that for any real numbers a, b, and c, a(b+c) = ab + ac.

(a+2b(3a-7b) = a + 2b(3a) - 2b(7b) = a + 6ab - 14b2

Simplifying the Expression

Now that we have expanded both terms, we can simplify the expression by combining like terms. The expression becomes:

(a+2b)2 - (a+2b(3a-7b) = a2 + 4ab + 4b2 - (a + 6ab - 14b2)

Combining Like Terms

To simplify the expression further, we can combine like terms. We can start by combining the terms with the same variable.

a2 + 4ab + 4b2 - a - 6ab + 14b2 = a2 - a + 4ab - 6ab + 4b2 + 14b2

Factoring the Expression

Now that we have combined like terms, we can factor the expression. We can start by factoring out the greatest common factor (GCF) of the terms.

a2 - a + 4ab - 6ab + 4b2 + 14b2 = a(a - 1) + 2b(2a - 3) + 18b2

Final Factored Form

The final factored form of the expression is:

a(a - 1) + 2b(2a - 3) + 18b2

Conclusion

In this article, we explored the factors of the expression (a+2b)2-(a+2b(3a-7b). We broke down the expression, applied the distributive property, and simplified the resulting expression to find its factors. The final factored form of the expression is a(a - 1) + 2b(2a - 3) + 18b2. This expression can be further simplified or used to solve equations involving the variables a and b.

Applications of Factoring

Factoring is a powerful tool in algebra that has numerous applications in various fields, including physics, engineering, and economics. Some of the applications of factoring include:

Solving Equations: Factoring can be used to solve equations involving quadratic expressions. By factoring the expression, we can identify the roots and understand the behavior of the function.
Graphing Functions: Factoring can be used to graph functions involving quadratic expressions. By identifying the roots and understanding the behavior of the function, we can create accurate graphs.
Optimization: Factoring can be used to optimize functions involving quadratic expressions. By identifying the maximum or minimum values of the function, we can make informed decisions.

Real-World Examples

Factoring has numerous real-world applications, including:

Physics: Factoring can be used to solve problems involving motion, energy, and momentum. By factoring the expression, we can identify the roots and understand the behavior of the function.
Engineering: Factoring can be used to design and optimize systems involving quadratic expressions. By factoring the expression, we can identify the maximum or minimum values of the function and make informed decisions.
Economics: Factoring can be used to model and analyze economic systems involving quadratic expressions. By factoring the expression, we can identify the roots and understand the behavior of the function.

Final Thoughts

In conclusion, factoring is a powerful tool in algebra that has numerous applications in various fields. By understanding the factors of an expression, we can identify the roots and understand the behavior of the function. The final factored form of the expression (a+2b)2-(a+2b(3a-7b) is a(a - 1) + 2b(2a - 3) + 18b2. This expression can be further simplified or used to solve equations involving the variables a and b.

Introduction

In our previous article, we explored the factors of the expression (a+2b)2-(a+2b(3a-7b). We broke down the expression, applied the distributive property, and simplified the resulting expression to find its factors. In this article, we will answer some of the most frequently asked questions about the factors of this expression.

Q: What is the final factored form of the expression (a+2b)2-(a+2b(3a-7b)?

A: The final factored form of the expression is a(a - 1) + 2b(2a - 3) + 18b2.

Q: How do I simplify the expression (a+2b)2-(a+2b(3a-7b)?

A: To simplify the expression, you can start by expanding the first term using the formula (x+y)2 = x2 + 2xy + y2. Then, you can expand the second term using the distributive property. Finally, you can combine like terms and factor the expression.

Q: What is the significance of factoring in algebra?

A: Factoring is a powerful tool in algebra that helps us simplify complex expressions and solve equations. By factoring an expression, we can identify the roots and understand the behavior of the function.

Q: How do I use factoring to solve equations?

A: To use factoring to solve equations, you can start by factoring the expression on one side of the equation. Then, you can set the factored expression equal to zero and solve for the variable.

Q: What are some real-world applications of factoring?

A: Factoring has numerous real-world applications, including physics, engineering, and economics. By factoring an expression, we can identify the roots and understand the behavior of the function, which can help us make informed decisions.

Q: Can I use factoring to graph functions?

A: Yes, factoring can be used to graph functions involving quadratic expressions. By identifying the roots and understanding the behavior of the function, we can create accurate graphs.

Q: How do I factor an expression with multiple variables?

A: To factor an expression with multiple variables, you can start by identifying the greatest common factor (GCF) of the terms. Then, you can factor out the GCF and simplify the resulting expression.

Q: What are some common mistakes to avoid when factoring?

A: Some common mistakes to avoid when factoring include:

Not expanding the first term: Make sure to expand the first term using the formula (x+y)2 = x2 + 2xy + y2.
Not using the distributive property: Make sure to use the distributive property to expand the second term.
Not combining like terms: Make sure to combine like terms and simplify the resulting expression.
Not factoring out the GCF: Make sure to factor out the greatest common factor (GCF) of the terms.

Q: Can I use factoring to solve systems of equations?

A: Yes, factoring can be used to solve systems of equations involving quadratic expressions. By factoring the expression, we can identify the roots and understand the behavior of the function, which can help us solve the system of equations.

Q: How do I use factoring to optimize functions?

A: To use factoring to optimize functions, you can start by factoring the expression and identifying the maximum or minimum values of the function. Then, you can use this information to make informed decisions.

Conclusion

In this article, we answered some of the most frequently asked questions about the factors of the expression (a+2b)2-(a+2b(3a-7b). We hope that this article has provided you with a better understanding of the factors of this expression and how to use factoring to solve equations and optimize functions.