Question

Simplify (x+y+z)²+(x-y-z)²

Answer 1

Answer:

x^4

Step-by-step explanation:

τнαทк yσυ ƒσr yσυr αττєทτiσn

$\textbf{}$

Answer 2

Answer:

we have,,

(a+b+c)^2 + a^2 + b^2 + c^2 = (a+b)^2 + (b+a)^2 + (c+a)^2 ………… (1)

Let,

a = -x+y+z , b = x-y+z , c = x+y-z

a+b = 2z , b+c = 2x , c+a = 2y

a+b+c = x+y+z

as (1) and given expression are same it will be simplified to

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

4(x^2 + y^2 + z^2)