Question

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


Thank you​

Answer 1

x² +2xy + 2xz - y² + z²

Explanation:

Answer 2

x^2 +2xy + 2xz - y^2 + z^2

Explanation:

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

x^2 + xy + xz + xy - y^2 + yz + xz - yz + z^2

x^2 + xy + xy + xz + xz - y^2 + yz - yz + z^2

x^2 +2xy + 2xz - y^2 + z^2