Question

Simplify the following expression
(x+y+z)2+(x+y-z)2

Answer 1

Answer:

here is your answer

$2(x + y + z) + 2(x + y - z) \\ = 2x + 2x + 2y + 2y + 2z - 2z \\ = 4x + 4y$

so answer is 4x+4y

Answer 2

Step-by-step explanation:

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

2x+2x+2y+2y+2z-2z

4x+4y

hope it is helpfull for you