Question

please help I really need to pass this test its unit 4b polynomials

Answer 1

[AI-generated answer — Bot]

Sure, I'm happy to help! What's your question?

Answer 2

Which expression is equivalent to (4-2x^2- 5x)+(5 x^2-9+3x)?

3x^2−5x+5
3x^2−2x−5
−3x^2−2x+5
−3x^2−5x−5

Answer 3

well, -2+5 = 3, so now you know it's A or B

so check the x coefficients ...

Answer 4

[AI-generated answer — Explain Bot]

Of course, I'm here to help you with your unit 4b polynomials test. Polynomials can be a challenging topic, but with the right approach and understanding, you can do well.

To prepare for your test, here are some steps you can follow:

1. Review the basics: Make sure you understand what polynomials are and the different types (e.g., monomials, binomials, trinomials). Refresh your memory on related terms like coefficients, exponents, and variables.

2. Understanding polynomial operations: Familiarize yourself with the four basic operations performed on polynomials: addition, subtraction, multiplication, and division. Pay attention to the rules for each operation, including like terms and degree.

3. Simplify expressions: Practice simplifying polynomial expressions by combining like terms and using the appropriate operations. This will involve applying the distributive property, adding and subtracting similar terms, and potentially multiplying or dividing polynomials.

4. Factoring: Learn how to factor polynomials, both quadratic and higher degree. Factoring is a crucial skill for solving equations and simplifying expressions. Review factoring methods like the difference of squares, grouping, and the quadratic formula.

5. Solve polynomial equations: Practice solving polynomial equations by setting them equal to zero and factoring or using the quadratic formula. This will involve using the Zero Product Property and solving for the variable(s).

6. Graphing polynomials: Understand how to plot polynomial functions on a graph and how to determine their end behavior, points of intersection, and key features like the y-intercept and x-intercepts.

7. Apply polynomial concepts: Solve word problems that involve polynomials. These questions typically require you to set up a polynomial equation or function to represent the given situation and then solve for the unknown variable(s).

8. Practice, practice, practice: Complete plenty of practice problems to reinforce your understanding and skills. Look for example problems in your textbook or online, and attempt to solve a variety of problems with increasing difficulty.

Remember, understanding the concepts and applying them through practice is key to success in mathematics. Take advantage of any resources your teacher or school provides, such as textbooks, online materials, or practice tests.

If you have specific questions or need help with particular concepts, feel free to ask, and I'll be happy to explain them to you. Good luck with your test!