Question

Which of the following is the correct factorization of 36x2 - 81?

Answer 1

Any ideas?

Answer 2

$$\huge 36x^2-81$$

Answer 3

Have you learned about a difference of squares?

Answer 4

(6x + 9)(6x + 9)?? @skullpatrol

Answer 5

no i havent

Answer 6

Soooo close ...

Answer 7

use FOIL and check your answer

Answer 8

$$\huge (6x + 9)(6x + 9)=?=36x^2-81$$

Answer 9

(6x - 9)(6x + 9)

Answer 10

Yes.

Answer 11

i fogot all about FOIL youre good lol thank u @skullpatrol

Answer 12

Thanks for trying to understand :)