а) (5a + 2b)^3 = 125a^3 + 3 125a^2 2b + 3 125a (2b)^2 + 8b^3= 125a^3 + 750a^2b + 1500ab^2 + 8b^3
б) (p^2 - 2k)^3 = p^6 - 3 p^4 2k + 3 p^2 (2k)^2 - 8k^3= p^6 - 6p^4k + 12p^2k^2 - 8k^3
в) -(m^3 + 3p)^3 = -(m^9 + 3 m^6 3p + 3 m^3 (3p)^2 + (3p)^3)= -m^9 - 27m^6p - 81m^3p^2 - 27p^3
а) (5a + 2b)^3 = 125a^3 + 3 125a^2 2b + 3 125a (2b)^2 + 8b^3
= 125a^3 + 750a^2b + 1500ab^2 + 8b^3
б) (p^2 - 2k)^3 = p^6 - 3 p^4 2k + 3 p^2 (2k)^2 - 8k^3
= p^6 - 6p^4k + 12p^2k^2 - 8k^3
в) -(m^3 + 3p)^3 = -(m^9 + 3 m^6 3p + 3 m^3 (3p)^2 + (3p)^3)
= -m^9 - 27m^6p - 81m^3p^2 - 27p^3