Question

Can someone check my answers for an automatic FAN and MEDAL!

Answer 1

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.
-- To find area you have multiply both sides together so (4x + 5) * (3x + 10) units which equals 12x^2 +55x+50.


Part B: What are the degree and classification of the expression obtained in Part A?
-- l the degree is the highest exponent, so 2 and classification would be a polynomial.


Part C: How does Part A demonstrate the closure property for polynomials?
-- I NEED HELP WITH THIS PART

Answer 2

@jim_thompson5910

Answer 3

@Mehek14 @ganeshie8 @cakecup2018 @Vocaloid

Answer 4

For part B, you can get more specific with the classification.

Answer 5

Ok but can you help me with part c I am really confused @jim_thompson5910

Answer 6

hint for part B: the term starts with the letter Q

Answer 7

the closure property is the idea if you take two numbers, and do some operation (eg: multiply) then the result will be in the same set

example: take two integers, multiply them, the result is an integer. So we say the set of integers is closed under multiplication

Answer 8

it extends to polynomials

take any two polynomials
multiply them
the result is some other polynomial

Answer 9

so the set of polynomials is closed under multiplication

Answer 10

That would be the answer

Answer 11

?

Answer 12

yeah more or less for part c