Question

(x + y)(x - y) + (y + z)(y - z) + (x + z)(x - z) = 0​

Answer 1

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

for this question point is very less so sorry I can't help you.

Answer 2

Step-by-step explanation:

X(x-y) + y(x-y) + y(y-z)+z(y-z) + X(x-z)+z(x-z) = 0

${x}^{2} - xy + yx - {y}^{2} + {y}^{2} - yz+ zy - {z}^{2} - {x}^{2} - xz + zx + {z}^{2}$