x2-y2+2 y z-z2=

Question

x2-y2+2 y z-z2=  (A) (x+y+z)(x-y+z) (B) (x-y-z)(x+y+z) (C) (x+y-z)(x+y-z) (D) (x+y+z)(y+z-x)

Tardigrade Admin · Accepted Answer

x2-y2+2 y z-z2 =-(y2-2 y z+z2)+x2 =x2-(y-z)2 =(x+z+y)(x-z-y)

Q. $x^{2} - y^{2} + 2 yz - z^{2} =$