Question

simplify
(x+y-z)² + (x-y+z)²​

Answer 1

Answer:

I get answer is 2x² + 2y² + 2z² - 4yz

Step-by-step explanation:

Just click on photo for Answer .

Using formula

(a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ac