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Mathematics 22 Online
OpenStudy (anonymous):

classify by degree and number of terms 4.4x^3 + 3x^2 – x – 4

OpenStudy (anonymous):

@jim_thompson5910 can you help me?

OpenStudy (lopus):

i believe degree: 3 terms: 4

jimthompson5910 (jim_thompson5910):

lopus is correct, so this is a cubic polynomial

OpenStudy (anonymous):

I have two more left can you help me solve those?

OpenStudy (lopus):

degree: choose largest term x^3 terms: x^3 x^2 x constant

jimthompson5910 (jim_thompson5910):

sure

OpenStudy (anonymous):

9x^2yz

OpenStudy (lopus):

try it

OpenStudy (lopus):

what do you think

OpenStudy (anonymous):

degree is 2? term is 11?

jimthompson5910 (jim_thompson5910):

this monomial has more than one variable, so you have to add the exponents for each variable to find the degree

OpenStudy (anonymous):

its a 3rd degree

jimthompson5910 (jim_thompson5910):

closer, but no

jimthompson5910 (jim_thompson5910):

the degree is not 2 and it's not 3

OpenStudy (anonymous):

5th degree

jimthompson5910 (jim_thompson5910):

9x^2yz is the same as 9x^2y^1z^1

jimthompson5910 (jim_thompson5910):

add up the exponents

OpenStudy (anonymous):

4

jimthompson5910 (jim_thompson5910):

so the degree is 4

jimthompson5910 (jim_thompson5910):

and there is only one term, so it's a monomial

OpenStudy (lopus):

wowww is 4 x^2 y^1 z^1

OpenStudy (lopus):

great

OpenStudy (anonymous):

thank you! I have one more 2x^3y + y^2x – 3x + 4

jimthompson5910 (jim_thompson5910):

what did you get

OpenStudy (lopus):

What do you suggest?

OpenStudy (anonymous):

degree is 2 term is 3

OpenStudy (lopus):

no

OpenStudy (lopus):

x^3 y^1

OpenStudy (anonymous):

term is 2 degree is 3?

jimthompson5910 (jim_thompson5910):

add up the exponents for each monomial

jimthompson5910 (jim_thompson5910):

the largest sum is the degree

OpenStudy (lopus):

degree is 3 + 1

OpenStudy (anonymous):

degree is 4

OpenStudy (lopus):

terms : |2x^3y | + | y^2x | – |3x |+ | 4| tell me

OpenStudy (anonymous):

4 terms

OpenStudy (anonymous):

am I right?

jimthompson5910 (jim_thompson5910):

degree = 4 # of terms = 4 yep both are correct, so it's a 4th degree polynomial

OpenStudy (anonymous):

thank you so much!

jimthompson5910 (jim_thompson5910):

np

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