Show that (x + ωy+ω^2z)(x+ω^2y + z) = x^2 + y^2+ z^2- yz – zx – xy.
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(=｀ェ´=)(=｀ェ´=)ʕ·ᴥ·ʔʕ·ᴥ·ʔ(￣(ｴ)￣)ﾉ(=｀ェ´=)(◕ᴥ◕)Ꮚ˘ ꈊ ˘ Ꮚ(◕ᴥ◕)Ꮚ˘ ꈊ ˘ Ꮚ(ᵔᴥᵔ)(^._.^)ﾉ(・(ｪ)・）(´(ｪ)｀）(￣(ｴ)￣)ﾉ(=｀ェ´=)(≧(ｴ)≦ )(￣(ｴ)￣)ﾉ(=｀ェ´=)(≧(ｴ)≦ )(・(ｪ)・）(´(ｪ)｀）(◕ᴥ◕)(・(ｪ)・）(´(ｪ)｀）(◕ᴥ◕)(・(ｪ)・）(´(ｪ)｀）ʕ·ᴥ·ʔ(￣(ｴ)￣)ﾉ(=｀ェ´=)ʕ·ᴥ·ʔ(￣(ｴ)￣)ﾉ(=｀ェ´=)ʕ·ᴥ·ʔ(￣(ｴ)￣)ﾉ(=｀ェ´=)ʕ·ᴥ·ʔ(￣(ｴ)￣)ﾉ◖⚆ᴥ⚆◗(≧(ｴ)≦ )◖⚆ᴥ⚆◗(￣(ｴ)￣)ﾉ(≧(ｴ)≦ )
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