Factor the expression below. 9x2 - 1
A. (x - 1)(9x + 1)
B. (3x - 1)(3x - 1)
C. (x - 1)(x-1)
D. (3x - 1)(3x + 1)
SUBMIT

(3x -1) (3x+1)

Step-by-step explanation:

9x^2 - 1

Rewriting

(3x)^2 -1^2

This is the difference of squares a^2 -b^2 = (a+b) (a-b)

(3x -1) (3x+1)

9x^2−1

=(3x+1)(3x−1)

So,the correct answer is D.Trust me this is the right answer

I hope this help you.Please give me the brainliest

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!