# factorisation

• Jan 23rd 2010, 09:23 AM
dopi
factorisation
can anyone factor this equation fully. I have been struggling with it and it should be quite straight foward.

x^2 - y^2 +2*z*x + 2*y*z + 2*y - 2*z - 1

thanks
• Jan 23rd 2010, 09:32 AM
emathinstruction
is there any reason to believe it is completely factorable?
• Jan 23rd 2010, 09:34 AM
drumist
• Jan 23rd 2010, 09:39 AM
skeeter
Quote:

Originally Posted by dopi
can anyone factor this equation fully. I have been struggling with it and it should be quite straight foward.

x^2 - y^2 +2*z*x + 2*y*z + 2*y - 2*z - 1

thanks

my TI-89 sez ...

$(x+y-1)(x-y+2z+1)$