Question

Simplify (-6a5b4c3)(5a3b2c)

Answer 1

`\text{Use:}\\\\a^n\cdot a^m=a^(n+m)\\\\(-6a^5b^4c^3)(5a^3b^2c)\\\\=(-6\cdot5)(a^5a^3)(b^4b^2)(c^3c^1)\\\\=-30a^(5+3)b^(4+2)c^(3+1)\\\\=\boxed{-30a^8b^6c^4}`