计算:5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/17 19:51:47
计算:5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2
x){nueZQgm 4LQEQf6 $铬GΆ

计算:5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2
计算:5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2

计算:5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2
5xy^2-[3xy^2-(4xy^2-2x^2y)]+2x^2y-xy^2
=5xy^2+2x^2y-xy^2-(3xy^2-4xy^2+2x^2y)
=4xy^2+2x^2y-(-xy^2+2x^2y)
=4xy^2+2x^2y+xy^2-2x^2y
=5xy^2