To factor 9x^2-4 you can first rewrite the expression as

Step-by-step explanation:

The given expression is

We can write and 4 can be written as square of 2. 4 =

Therefore, we can write

Now we can factor it out.

We are asked to rewrite the expression.

Therefore, the answer is

Let me factor this expression for your reference.

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)

i got 142 as my answer

step-by-step explanation: