Question

need help right now please

Answer 1

The length of a rectangle is (4x^2 + 2x - 1) units, and its width is (3x^3 - x + 4) units.

Part A: What is the area of the rectangle? Show your work. (5 points)

Part B: Does the answer for Part A show that polynomials are closed under an operation? Justify your answer. (3 points)

Part C: What is the degree and classification of the expression obtained in Part A? (2 points)

Answer 2

hello?

Answer 3

(4x^2 + 2x - 1) * (3x^3 - x + 4)

Answer 4

this is for part A?

Answer 5

yes

multiply second parentheses by 4x^2 , then by + 2x, then by -1. Then simplify like terms.

Answer 6

the first term will be 12x^5

Answer 7

wait whats part B?

Answer 8

@welshfella

Answer 9

the result of the multiplication will be another polynomial supporting the fact that polynomials are close under multiplication.