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A rectangle has sides measuring (4x + 5) units and (3x + 10) units.

Part A: What is the expression that represents the area of the rectangle? Show your work. (4 points)

Part B: What are the degree and classification of the expression obtained in Part A? (3 points)

Part C: How does Part A demonstrate the closure property for polynomials? (3 points)

Respuesta :

Answer:

The area is just length times width: (4x+5)(3x+10)=12x2+55x+50.

Step-by-step explanation:

ELM0

Part A: 12x2 + 55x + 50

Shown work: (4x + 5)(3x + 10) = 12x2 + 55x + 50

Part B: The polynomial is quadratic with a degree of 2.

Part C: The answer for part A is an example of a polynomial that is closed under addition.

- I'm not very familiar with the closure property, so I wouldn't take my answer for part c to be true. Everything else should be though!

hope this helps :)

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