1) 0,27a^3b^2c^6 31a^2b^5c^12 = 0,27 31 a^3 a^2 b^2 b^5 c^6 c^12 = 8,37a^5b^7c^18
2) -14x^7yz^2 12x^2y^9z^5 = -14 12 x^7 x^2 y y^9 z^2 z^5 = -168x^9y^10z^7
1) 0,27a^3b^2c^6 31a^2b^5c^12 = 0,27 31 a^3 a^2 b^2 b^5 c^6 c^12 = 8,37a^5b^7c^18
2) -14x^7yz^2 12x^2y^9z^5 = -14 12 x^7 x^2 y y^9 z^2 z^5 = -168x^9y^10z^7