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Mathematics 19 Online
OpenStudy (henrietepurina):

Algebra 1 questions Fan + Medal

OpenStudy (henrietepurina):

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)

OpenStudy (henrietepurina):

@satellite73

OpenStudy (anonymous):

this is definitely not an algebra 1 problem!

OpenStudy (henrietepurina):

yes it is @Kunitskiy1 it is Polynomials

OpenStudy (anonymous):

area= length * width, so you foil the two polynomials

OpenStudy (henrietepurina):

mkay Ill do it, you tell me if im right

OpenStudy (henrietepurina):

12x^5+6x^4−7x^3+14x^2+9x−4

OpenStudy (henrietepurina):

refresh the page to remove the question marks

OpenStudy (anonymous):

12x^5+6x^4-7x^3+14x^2+9x-4 is what i got

OpenStudy (henrietepurina):

we got the same answer :)

OpenStudy (henrietepurina):

what next for Part B

OpenStudy (anonymous):

i don't know what you mean with part b

OpenStudy (henrietepurina):

ahh... well here is the rule, but I cant seem to be able to apply it

OpenStudy (anonymous):

part c. the degree is 5th degree, i don't know the classification

OpenStudy (henrietepurina):

hmm... I would have to say 5th degree polynomial... do you agree?

OpenStudy (anonymous):

yep, thats what i said above... 5th degree

OpenStudy (henrietepurina):

ok... now lets try to do B

OpenStudy (anonymous):

i guess i would say, yes, because you are limited to the area equation, Area=length*width

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