计算:[6xy2(x2-3xy)-(-3x2y3)]÷(3x2y2)
问题描述:
计算:[6xy2(x2-3xy)-(-3x2y3)]÷(3x2y2)
答
[6xy2(x2-3xy)-(-3x2y3)]÷(3x2y2)
=[6x3y2-18x2y3+3x2y3)]÷(3x2y2)
=[6x3y2-15x2y3]÷(3x2y2)
=2x-5y.