Question

x² + y² + z² _ 2xy +2yz _ 2zx​

Answer 1

Answer:

This is an identity

(x+y+z)² = x² + y² + z² + 2xy +2yz + 2zx

and in the dash you need to fill + sign

Step-by-step explanation:

Hope it helps

Answer 2

Answer:-

This is an identity

(x+y+z)² = x² + y² + z² + 2xy +2yz + 2zx

and in the dash you need to fill + sign