Understanding Closed Operations for Polynomials

This lesson explores the concept of closed operations for polynomials and integers. It begins by explaining that integers are closed under addition, subtraction, and multiplication but not division. The lesson then addresses common misunderstandings about natural numbers and their operations. It further examines polynomials, demonstrating that they are closed under addition, subtraction, and multiplication, but not always under division. The lesson concludes by summarizing the closed operations for polynomials.

What does it mean for a set to be closed under an operation?

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Provide an example of integers being closed under addition.

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Explain why integers are not closed under division.

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What operations are natural numbers closed under?

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Describe the process of adding two polynomials and provide an example.

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