2(a^2b^3c)^2÷(-4a^3b^4c)
问题描述：
2(a^2b^3c)^2÷(-4a^3b^4c)
答
2(a^2b^3c)^2÷(-4a^3b^4c)
=2a^4b^6c²÷(-4a^3b^4c)
=-½ab²c