Question

the expression x^2-y^2+x+y-z^2+2yz-z has one factor,which is
a) y-x+z
b) x-y+z+1
c) x+y-z+1
d) x-y-z+1

Answer 1

it's 'c'
......................................................................................

Answer 2

Question

the expression x^2-y^2+x+y-z^2+2yz-z has one factor,which is

a) y-x+z

b) x-y+z+1

c) x+y-z+1

d) x-y-z+1

Answer:

c) x+y-z+1