Question

using the (x+y+z)^2 formula according to 9th​

Answer 1

Answer:

$= > 2 {x}^{2} + {y}^{2} + 8 {z}^{2} - 2 \sqrt{2} xy + 4 \sqrt{2} yz - 8xz \\ = > {( \sqrt{2} x - y - 2 \sqrt{2} z)}^{2}$

question was easy but typing was quite hard....

Answer 2

Answer:

Sis forgot me????