The expression "3,5 a^5 b^3 a^3 b^4 c * ( - 2/7) abc^3" can be simplified as follows:
= 3 5 a^5 b^3 a^3 b^4 c ( - 2/7) a b c^3= 15 a^8 b^7 c^4 ( - 2/7)
Therefore, the simplified expression is - 30/7 a^8 b^7 * c^4
The expression "3,5 a^5 b^3 a^3 b^4 c * ( - 2/7) abc^3" can be simplified as follows:
= 3 5 a^5 b^3 a^3 b^4 c ( - 2/7) a b c^3
= 15 a^8 b^7 c^4 ( - 2/7)
Therefore, the simplified expression is - 30/7 a^8 b^7 * c^4