Respuestas:
[tex]5x-10y+15z\\\\-4a^{2} -8a+14\\\\13m^{2} n+7m^{2} n^{2} -2mn^{2} +6\\\\a+12b-3c\\\\-x+y-z[/tex]
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Verified answer
Respuestas:
[tex]5x-10y+15z\\\\-4a^{2} -8a+14\\\\13m^{2} n+7m^{2} n^{2} -2mn^{2} +6\\\\a+12b-3c\\\\-x+y-z[/tex]