# Math Help - factorisation

1. ## 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

2. is there any reason to believe it is completely factorable?

3. 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 ...

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