factor this completley

Question

9a²-4

Answer 1

Hello, thank you for taking the time to post your question!

This is a difference of squares term, since both 9a^2 and 4 are perfect squares of “3a” and “2”. That means that the expression can be rewritten as

9a^2 – 4 = (3a – 2)(3a + 2)

I hope that helps get you moving in the right direction! Feel free to reach out if you have any additional questions beyond that :)

Answer 2

difference of squares x² - y² where x = 3a and y = 2

 

difference of squares factors into (x + y)(x - y) = (3a + 2)(3a - 2)