Question

factor completely
81w^2-49

Answer 1

Difference of squares.

Answer 2

http://openstudy.com/study#/updates/4fd62be0e4b04bec7f17374c

Answer 3

Difference of two squares (x^2-y^2)=(x+y)(x-y)

Answer 4

So what is being squared? @pinkwhispers80

Answer 5

?

Answer 6

Check out the link it's really good

Answer 7

k

Answer 8

Did you learn your squares of 1-12? It makes it easier to recognize them and also cubes when you get to that formula

Answer 9

so would w be 9?

Answer 10

or 7?

Answer 11

Do you have to solve this? or just factor?

Answer 12

(9w-7)(9w+7)??

Answer 13

Yes!

Answer 14

it says factor completely

Answer 15

Well then that is it you're done!

Answer 16

ty!