Question

(will fan and medal whoever answers in the next five minutes)
Determine which polynomial has (x + 4) as a factor.


A. x^2+11x+28
B. x^2-6x+8
C. x^2+7x+12
D. x^2-4x+16

Answer 1

@zepdrix @jim_thompson5910

Answer 2

@leonardo0430

Answer 3

@sleepyjess

Answer 4

do you know how to factor polynomials?

Answer 5

yes

Answer 6

btw I like ur owl xD

Answer 7

tank you :-)

Answer 8

ok so you know that they have to multiply to be the 3rd number and add to be the second number correct?

Answer 9

yes

Answer 10

ok so lets start with the first one
what are the factors of 28?

Answer 11

1,2,4,7,14,28

Answer 12

ok so do any of those add to be 11?

Answer 13

and for this one both factors are either both positive or both negative

Answer 14

I don't know but I'm running out of time!

Answer 15

4 and 7 add to be 11 correct?

Answer 16

yes

Answer 17

ok so now lets do (x+4)(x+7)
\(x^2+4x+7x+28\)
simplifiy that
\(x^2+11x+28\)

Answer 18

so it's not a

Answer 19

yes it is A
notice how the factors are (x+4) and (x+7)

Answer 20

but A is x^2-11x-28 you got addition

Answer 21

This is what my screen says
(will fan and medal whoever answers in the next five minutes)
Determine which polynomial has (x + 4) as a factor.


A. x^2+11x+28
B. x^2-6x+8
C. x^2+7x+12
D. x^2-4x+16

Answer 22

o I must have typed it in wrong

Answer 23

ok then factors of 8
1, 2, 4, 8
both must be negative since 8 is positive but 6 is negative

Answer 24

-4, -2

Answer 25

I think it's C.

Answer 26

we know just from those factors it cant be B

Answer 27

yes

Answer 28

factors of 12
1, 2, 3, 4, 6, 12
both positive must be positive since both number are positive
3 and 4

Answer 29

(x+3)(x+4)
\(x^2+3x+4x+12=x^2+7x+12\)

Answer 30

Ok so I was right?

Answer 31

yes

Answer 32

cool!

Answer 33

thank you!

Answer 34

YAY I GOT 100 PERCENT WOOHOO!!!

Answer 35

do you have any more questions? if so im sorry but i cant help i am in the middle of a history test right now and i cant let it time me out or it will submit it with the answers i have and im not done yet

Answer 36

O ok ya that is what mine just did to me :P but I still got 100 YAY

Answer 37

Nope all my questions are answered :)