(3a^2*b-7a*b^2-a^2*b^2)*5a*b化简

问题描述:

(3a^2*b-7a*b^2-a^2*b^2)*5a*b化简

(3a^2*b-7a*b^2-a^2*b^2)*5a*b
=15a³b²-35a²b³-5a³b³(0.25a^3-2a^2+3a)*(-0.75a)这个呢?