а) 2n^6 + 4n^4 - 4n^2 + n^6 - 2n^4 + 4n^2 = 3n^6 + 2n^4
б) p^3q^4 - p^6q^2 + p^9 + q^6 - p^3q^2 + p^6 = p^9 + q^6
в) 9n^2m + 27n^3 - 3n^2m - 9nm^2 + m^3 + 3n^2 = m^3 + 27n^3 + 3n^2
г) a^12 + a^8 - a^4 + a^4 + a^8 - a^4 + 1 = a^12 + 2a^8 - 2a^4 + 1
а) 2n^6 + 4n^4 - 4n^2 + n^6 - 2n^4 + 4n^2 = 3n^6 + 2n^4
б) p^3q^4 - p^6q^2 + p^9 + q^6 - p^3q^2 + p^6 = p^9 + q^6
в) 9n^2m + 27n^3 - 3n^2m - 9nm^2 + m^3 + 3n^2 = m^3 + 27n^3 + 3n^2
г) a^12 + a^8 - a^4 + a^4 + a^8 - a^4 + 1 = a^12 + 2a^8 - 2a^4 + 1