Question

Write each function in intercept form.
f(x)=x^2+6x+5
f(x)=x^2-2x-8

Answer 1

Factor each quadratic expresion.

Answer 2

Im not sure how to do that.

Answer 3

x^2 + 6x + 5 = (x + ?)(x + ?)
You need to fill the question marks with numbers such that their sum is the middle coeeficient 6 and their product is the last term 5.

Answer 4

(x+2)(x+3)?

Answer 5

2 amd 3 add up to 5 and multiply to 6.
We need ttwo numbers that ddd to 6 and multiply to 5.

Answer 6

5 and 1

Answer 7

yes.

Answer 8

how do I make it intercept form?

Answer 9

That is it. f(x) = x^2 + 6x + 5 = (x + 1)(x + 5)

Answer 10

oh. Thank you.

Answer 11

Is it the same way with negatives?

Answer 12

Yes find two numbers that add to -2 and multiply to -8.
If two numbers multiply to a negative number then one number has to be positive and the other number has to be negative.
What are the various factors of 8? List them and you can find the two numbers.

Answer 13

-4 and 2 are the two numbers

Answer 14

correct.

Answer 15

How did you get -5 and -1 for the first one

Answer 16

Im not sure if there is another step

Answer 17

or +5 and +1

Answer 18

not negative

Answer 19

I wrote them down positive

Answer 20

i rwad x intercepts

Answer 21

Does the question ask for the x-intercepts?
What you have posted just asks for the intercept form of x^2 + 6x + 5.

Answer 22

oh I understand now

Answer 23

I got the wrong answer originally

Answer 24

pkay.

Answer 25

How would I do it if it was like f(x)=2x^2-8x+6