Question

According to the rational root theorem, what are possible roots of the polynomial function below? F(x) = 8x3 - 3x2 + 5x + 15

Answer 1

there are no rational roots to that function

Answer 2

really? because:

Answer 3

ask the teacher?

Answer 4

can't

Answer 5

i have to take these quizzes at home

Answer 6

@superhelp101

Answer 7

oh. u dont need to select any

Answer 8

it says "select all correct answers" and none are correcet

Answer 9

yeah i do..it won't let me not select any

Answer 10

that's why i'm confused

Answer 11

ihni then. sorry :/

Answer 12

it's ok

Answer 13

@Melodysim

Answer 14

@Here_to_Help15 do you know this?

Answer 15

F(x) = 8x3 - 3x2 + 5x + 15

Possible rational roots are: \(\Large \pm \frac{\text{factors of 15}}{\text{factors of 8}} \)

Answer 16

soooo..like 5/2?

Answer 17

-1/4?

Answer 18

factors of 15: 1, 3, 5, 15
factors of 8: 1, 2, 4, 8

Possible rational roots are: \(\Large \pm \frac{1,3,5,15}{1,2,4,8} \)

Answer 19

so A and E (is that all?)

Answer 20

\(\Large \pm \frac{1,3,5,15}{1,2,4,8}\)
Go through each answer choice and see if it is one of the choices from above.
5/2 - yes
4 - no
5 - yes (5/1)
-3 - yes (-3/1)
-1/4 - yes
2/3 - no

Answer 21

THANKS!

Answer 22

yw.