factorise this - z-7+7xy-xyz Share with your friends Share 1 Em answered this (z-xyz) +(7xy-7)=z(1-xy)+7(xy-1)=z(1-xy)-7(-xy+1)=z(1-xy)-7(1-xy)=(z-7)(1-xy) 11 View Full Answer Sanidhya answered this ANS: z-7 + 7xy -xyz = z - xyz - 7+7xy=z (1-xy) -7(1- xy)=z(1-xy)-7(-xy+1)=z( 1 - xy)-7(1-xy)=(z-7)(1-xy) 6
