POLYNOMIALS
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Unit Overview
This unit is an introduction to polynomials. In this unit you, will learn how to add and subtract polynomials. This concept will be expanded upon in future units and is very important to understand.
Polynomials
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What are the coefficents of each of the variable terms in 7y3 + 4y2 – 9y + 5?
7, 4, and –9
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General Polynomials (02:14)
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What is the degree of 7xy3 + 4x4y2 – 9xy + 5 ?
The degree is 6 based on the second term (4 + 2 = 6).
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In terms of y, what is the order of –2x3y + 8x2y2 + 7xy3 – 9y4 ?
Ascending Order
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Stop! Go to Questions #1-16 about this section, then return to continue on to the next section.
Adding Polynomials
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Stop! Go to Questions #17-22 about this section, then return to continue on to the next section.
Subtracting Polynomials
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Are polynomials closed under addition?
Yes!
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Now, consider subtraction of polynomials for closure. Look over the answers to the subtraction examples in this section of the content. When two polynomials are subtracted, will the result always be a polynomial?
Are polynomials closed under subtraction?
Again, Yes!
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Stop! Go to Questions #23-30 to complete this unit.
