Question

simplify ( x-y-z)^2-(x+y+z)^2

Answer 1

​    h⃢​    e⃢​    y⃢​     ​    m⃢​    a⃢​    t⃢​    e⃢​     ​    h⃢​    e⃢​    r⃢​    e⃢​     ​    i⃢​    s⃢​     ​    y⃢​    o⃢​    u⃢​    r⃢​     ​    a⃢​    n⃢​    s⃢​    w⃢​    e⃢​    r⃢     ​

refer to the attachment

Answer 2

Its identity match from a²-b²=(a+b)(a-b)
So
(X-y-z+x+y+z)(X-y-z-x+y+z)
(X+x-y+y-z+z)(x-x-y+y-z+z)
2x




I hope this will help you
By DEVANSH