Question

someone help me please !!!!! :(

Answer 1

what do you need help with

Answer 2

writing polynomial functions of least degree with intergral coeffiecients that has the given zeros ?

Answer 3

you gotta give all the info before someone can help you

Answer 4

3 , 5 , -5

Answer 5

that is all that is on my paper .i just typed what my directions said

Answer 6

that is at least a degree 3 poly

(x-3)(x-5)(x+5)

Answer 7

(x-3)(x^2 -25)

x^3 -3x^2 -25x +75

Answer 8

ok so next what do i do ?

Answer 9

Suppose you need to write a polynomial function of 6, 2i with intergral coeffiecients that has the given zeros
then
X-6 is the polynomial with least degree and 6 as zero.
X=2i --> X^2=-4 --> X^2+4=0 --> X^2+4 is the polyn. with least degree and 2i as zero.
---> (X-6)(X^2+4)=X^3-6X^2+4X-24 is solution

Answer 10

you write down your three roots like this:

(x-3)(x-5)(x+5) ; then multiply them together

Answer 11

im lost . i got \[x ^{2} + 15x\] thats all i have so far .

Answer 12

thats not correct :)

Answer 13

lol ok so what is correct then ?

Answer 14

what do you have as the "root" factors of the problem?

Answer 15

how do you take: x = 3,5,-5 and make root factors?

Answer 16

x then the opposite of the number.. thats what my teacher said

Answer 17

(3+a) = 0
(5+b) = 0
(-5+c) = 0

solve for a b and c and use them like this:

(x+a)(x+b)(x+c)

Answer 18

thats right, the opposite of the numbers...

Answer 19

what do you get as your root factors then?

Answer 20

uhm .... lol im sorry but i have ( NO ] clue

Answer 21

root factors is a term im using that has no real mathmatical value except for what I use it for :)

root factors, by me, are the (x....)(x......)(x......) things that polys factor down into; does that make sense?

x^2 +7x +12 factors into:

(x+4)(x+3) <---- root factors are these things

Answer 22

ooooooooooooooooo yea . when you factor .. i know that ..

like to factor \[x ^{2} + 5 +14\] wouldnt that be (x+7)(x+2)

Answer 23

thats right :) except for the typos :)

Answer 24

or i mean -14 and then (x+7)(x-2)

Answer 25

:) you should really be my new tutor . lol i understand you more than the rest

Answer 26

the root factor of x=-7 is: (x+7)

the root factor of x=4 is: (x-4)

the root factor of x=2 is: (x-2)

Answer 27

the root factor of x=3 is: ??

the root factor of x=5 is: ??

the root factor of x=-5 is: ??

Answer 28

thr root factor of x=3 is: (x-3)
the root factor of x-5 is: (x+5)
the root factor of x=-5 is: (x+5)

:) right ?

Answer 29

very good :)

now lets multiply those root factors together :)

Answer 30

(x-3)(x+5) = xx -3x +5x -15 = x^2 +2x -15 right?

Answer 31

xx ? n

Answer 32

i mean xx ?

Answer 33

xx means x*x mean x^2

Answer 34

ooooo sorry :) ok im following you again

Answer 35

(x-5)(x^2 +2x -15) = xxx +2xx -15x -5xx -10x +75 :

x^3 -3x^2 -25x +75 .... if im seeing it right :)

Answer 36

and its good ;)

Answer 37

lol how old are you ? you are a genius at this

Answer 38

as long as you turn it into your root factors; and keep track of your multiplying, its simple enough :)

Answer 39

....old :)

Answer 40

lol you seem young too me . haha