Question

Giving medalsWhich of the following shows that polynomials are closed under addition when two polynomials 4x2 − 8x − 7 and −5x + 16 are added?

4x2 − 13x + 9 may or may not be a polynomial

4x2 + 13x − 23 may or may not be a polynomial

4x2 − 13x + 9 will be a polynomial

4x2 + 13x − 23 will be a polynomial

Answer 1

@study100

Answer 2

well first you need to add the two polynomials 4x2 − 8x − 7 and −5x + 16

Answer 3

what do u get?

Answer 4

im sorry i forgot to put the powers

Answer 5

rosie got your back :))

Answer 6

it's ok. i know where they r :) and thanks @study100 :)

Answer 7

4x^2 − 8x − 7 and −5x + 16 are added?

4x^2 − 13x + 9 may or may not be a polynomial

4x^2 + 13x − 23 may or may not be a polynomial

4x^2 − 13x + 9 will be a polynomial

4x^2 + 13x − 23 will be a polynomial

Answer 8

right, add 4x^2 − 8x − 7 and −5x + 16. do u know how 2 do that?

Answer 9

wait let me add them

Answer 10

kk :)

Answer 11

4x^2-13x+9

Answer 12

right!

Answer 13

and that is still a polynomial, right? :)

Answer 14

no because it is a trinomial am i right?

Answer 15

a trinomial is a classification of polynomial :)

Answer 16

ooohhh

Answer 17

so it is a polynomial <3

Answer 18

so what do u think the answer is?

Answer 19

thanks youre smart

Answer 20

np :)

Answer 21

wait let me read them

Answer 22

its c

Answer 23

Yup! :) <3

Answer 24

Thanks

Answer 25

would you help me with another one please?

Answer 26

☆✬np✬☆

Answer 27

sure :)

Answer 28

just post it in another thread and tag me :)

Answer 29

ill make a new question to give you more medals you deserve them

Answer 30

thanks :)