Expressing the Polynomial as a Product of Binomials

Oct 13, 2025 by wbrum.org 108 views

If ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$, determine the relation between ${$ a$}$ and ${$ b$}$.

Understanding the Problem

To find the relation between ${$ a$}$ and ${$ b$}$, we need to understand the concept of factors in polynomials. If ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$, then we can express the polynomial as a product of these two binomials.

Expressing the Polynomial as a Product of Binomials

Let's assume that the polynomial ${$ ax^2+3x+b$}$ can be expressed as a product of ${$ (x+2)$}$ and ${$ (2x-1)$}$. We can write this as:

${$ ax^2+3x+b = (x+2)(2x-1)$]

Expanding the Product

To find the relation between [ $a\$}$ and ${$ b$}$, we need to expand the product of ${$ (x+2)$}$ and ${$ (2x-1)$}$.

${$ (x+2)(2x-1) = 2x^2 - x + 4x - 2$]

Simplifying the Expression

Now, let's simplify the expression by combining like terms.

[$2x^2 - x + 4x - 2 = 2x^2 + 3x - 2$]

Comparing Coefficients

We can now compare the coefficients of the expanded expression with the original polynomial.

[$2x^2 + 3x - 2 = ax^2 + 3x + b$]

Finding the Relation between [ $a\$}$ and ${$ b$}$

By comparing the coefficients, we can see that ${$ a = 2$}$ and ${$ b = -2$}$. This means that the relation between ${$ a$}$ and ${$ b$}$ is ${$ a \ \textgreater \ b$}$.

Conclusion

In conclusion, if ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$, then the relation between ${$ a$}$ and ${$ b$}$ is ${$ a \ \textgreater \ b$}$.

Final Answer

The final answer is ${$ a \ \textgreater \ b$}$.

Step-by-Step Solution

Here's a step-by-step solution to the problem:

Express the polynomial ${$ ax^2+3x+b$}$ as a product of ${$ (x+2)$}$ and ${$ (2x-1)$}$.
Expand the product of ${$ (x+2)$}$ and ${$ (2x-1)$}$.
Simplify the expression by combining like terms.
Compare the coefficients of the expanded expression with the original polynomial.
Find the relation between ${$ a$}$ and ${$ b$}$ by comparing the coefficients.

Frequently Asked Questions

What is the relation between ${$ a$}$ and ${$ b$}$ if ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$?
How do we express the polynomial ${$ ax^2+3x+b$}$ as a product of ${$ (x+2)$}$ and ${$ (2x-1)$}$?
What is the final answer to the problem?

Conclusion

In conclusion, if ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$, then the relation between ${$ a$}$ and ${$ b$}$ is ${$ a \ \textgreater \ b$}$.
Q&A: If ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$, determine the relation between ${$ a$}$ and ${$ b$}$.

Frequently Asked Questions

Q: What is the relation between ${$ a$}$ and ${$ b$}$ if ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$?

A: The relation between ${$ a$}$ and ${$ b$}$ is ${$ a \ \textgreater \ b$}$.

Q: How do we express the polynomial ${$ ax^2+3x+b$}$ as a product of ${$ (x+2)$}$ and ${$ (2x-1)$}$?

A: We can express the polynomial as a product of ${$ (x+2)$}$ and ${$ (2x-1)$}$ by multiplying the two binomials together.

Q: What is the final answer to the problem?

A: The final answer to the problem is ${$ a \ \textgreater \ b$}$.

Q: How do we find the relation between ${$ a$}$ and ${$ b$}$?

A: We can find the relation between ${$ a$}$ and ${$ b$}$ by comparing the coefficients of the expanded expression with the original polynomial.

Q: What is the significance of the relation between ${$ a$}$ and ${$ b$}$?

A: The relation between ${$ a$}$ and ${$ b$}$ is significant because it helps us understand the properties of the polynomial and its factors.

Q: Can we use this method to find the relation between ${$ a$}$ and ${$ b$}$ for any polynomial?

A: No, this method can only be used to find the relation between ${$ a$}$ and ${$ b$}$ for polynomials that have ${$ (x+2)$}$ and ${$ (2x-1)$}$ as factors.

Q: How do we know that ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$?

A: We know that ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$ because the problem states that they are factors.

Q: Can we use this method to find the relation between ${$ a$}$ and ${$ c$}$ for any polynomial?

A: No, this method can only be used to find the relation between ${$ a$}$ and ${$ b$}$ for polynomials that have ${$ (x+2)$}$ and ${$ (2x-1)$}$ as factors.

Conclusion

In conclusion, if ${$ (x+2)$}$ and ${$ (2x-1)$}$ are factors of ${$ ax^2+3x+b$}$, then the relation between ${$ a$}$ and ${$ b$}$ is ${$ a \ \textgreater \ b$}$.