Question

The length of a rectangle is (5x^2 +4x-4) units, and its width is (4x^3-2x+6)units.


Part A) what is the are of the rectangle? Show your work.

Part B) Does the answer for Part A show that polynomials are closed under an operation? justify your answer.

Part C) What are the degree and classification of the expression obtained in Part A?

Answer 1

area of a rectangle is
area = length * width

so,
area = (5x^2 +4x-4) (4x^3-2x+6) = ...