T texbum New member Joined Sep 3, 2007 Messages 2 Sep 3, 2007 #1 I Need Some Help With Factoring. The first problem, in a series of problems I cant get figured out, is: 49-(x+4y)^2 Any help would be much appreciated!

I Need Some Help With Factoring. The first problem, in a series of problems I cant get figured out, is: 49-(x+4y)^2 Any help would be much appreciated!

S Subhotosh Khan Super Moderator Staff member Joined Jun 18, 2007 Messages 18,134 Sep 3, 2007 #2 Re: I Need Some Help With Factoring texbum said: The first problem, in a series of problems I cant get figured out, is: 49-(x+4y)^2 Any help would be much appreciated! Click to expand... Hint: 49 = \(\displaystyle 7^2\) and \(\displaystyle a^2 - b^2 = (a+b)(a-b)\)

Re: I Need Some Help With Factoring texbum said: The first problem, in a series of problems I cant get figured out, is: 49-(x+4y)^2 Any help would be much appreciated! Click to expand... Hint: 49 = \(\displaystyle 7^2\) and \(\displaystyle a^2 - b^2 = (a+b)(a-b)\)

D Denis Senior Member Joined Feb 17, 2004 Messages 1,446 Sep 4, 2007 #4 texbum said: (7+x-4y)(7-x-4y)? Click to expand... Not quite: (7 + x + 4y)(7 - x - 4y)