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 to receive full credit. (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)

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area = product of adjacent sides
so area = (4x + 5)(3x + 10)
can you expand this?

= 4(3x + 10) + 5(3x + 10)
can you continue?

r u there?

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