Question

what polynomial has roots of -4, -1, and 6

Answer 1

I would rephrase the question a little differently.

"what is the function that has roots of -4 -1 and 6 ?"

Answer 2

you can write those roots as (x+4) (x+1) and (x-6) and we know that the function can be factored to it's roots, so lets work this backwards,

Expand (x+4)(x+1)(x-6)

Answer 3

OK...And what should I do?

Answer 4

FOIL (x+4)(x+1)(x-6) out.

Answer 5

okk

Answer 6

when you get the answer, tell us what you got, to make sure it's right.

Answer 7

Wait is it x * x and 4 *1?

Answer 8

First, Outside, Inside, Last. Multiply them out in that order.

Answer 9

I'll do an example for you.

Answer 10

(x+1)(x+2)
Multiply x*x, add x*2 because of the plus sign between them (x and +2.)
Then do 1*x and add 1*2 (1 and the +2).
You'd get x^2+2x+x+2
Simplify this and you'd get x^2+3x+2.

Answer 11

ohhh okay!

Answer 12

k i got x^2+5x+4

Answer 13

Ok the answer is x^3-x^2-26x-24

Answer 14

I got the same thing.

Answer 15

whoohoo!

Answer 16

can u help with another

Answer 17

@halorazer

Answer 18

Yes I can. Sorry for the late reply, haven't been on. still need help?