Question

factor x^2 - 49z^2

Answer 1

use this formula
a^2-b^2 = (a+b)(a-b)

Answer 2

Thanks mayne

Answer 3

I made a few videos on this topic:
http://www.mathmods.com/mat100/Chapters/Factoring/sum_diff_squares2/sum_diff_squares2.html
http://www.mathmods.com/mat100/Chapters/Factoring/sum_diff_squares1/sum_diff_squares1.html
http://www.mathmods.com/mat100/Chapters/Factoring/sum_diff_squares3/sum_diff_squares3.html

Answer 4

Thanks this helps

Answer 5

good ... I have a lot of factoring videos

Answer 6

I found the link to my factoring videos in case you want to use them:
www.mathmods.com/mat100/Chapters/Factoring/factoring_video_links.pdf