Question

What are the possible rational zeros of f(x) = x3 − 4x2 + 2x + 21?

±1, ±3, ±7

±3, ±7, ±21

±1, ±2, ±5

±1, ±3, ±7, ±21

Answer 1

list the factors of +21 including +/- 1 and +/- 21

Answer 2

1 3 7 21

Answer 3

WELSH

Answer 4

WELSH

Answer 5

WELSH

Answer 6

@welshfella

Answer 7

@welshfella

Answer 8

@welshfella

Answer 9

I hate when people do that

Answer 10

@StudyGurl14

Answer 11

do what

Answer 12

leave without giving me the answer

Answer 13

lol

Answer 14

i don't know it either its hard

Answer 15

every 1 scared of math 4 sigh

Answer 16

lol

Answer 17

@Compassionate

Answer 18

@jim_thompson5910

Answer 19

@jim_thompson5910

Answer 20

see they avoid me

Answer 21

lol same

Answer 22

1 3 7 21 is half the list

Answer 23

don't forget about the negative counterparts

Answer 24

see he didn't

Answer 25

1, 3, 7, 21, -1, -3, -7, -21.

Answer 26

yep, and you can use the "plus/minus" to condense that list

Answer 27

so what I do next?

Answer 28

for example, the 1 and -1 can be written as \(\Large \pm 1\)

Answer 29

do the same with the other numbers

Answer 30

±1, ±3, ±7, ±21 ±-1, ±-3, ±-7, ±-21 assuming what your talking bout

Answer 31

sorry I didnt come back by I got called away

Answer 32

±-7 is just redundant

Answer 33

±1, ±3, ±7, ±21 is the most efficient way to do it

Answer 34

you straight @welshfella

Answer 35

its 13721 thx