Question

factorize by grouping :
xyz - xy - z + 1

this is very urgent plz help.
don't give irrelevant answers
thank you​

Answer 1

Answer:

(z-1)(xy-1)

Step-by-step explanation:

given,

xyz-xy-z+1

= (xyz-xy) -(z-1)

=xy(z-1)-1(z-1)

=(z-1)(xy-1)