3xy-0.5x^2y+6xy^2+0.5x^2y-4xy^2+xy^2
问题描述:
3xy-0.5x^2y+6xy^2+0.5x^2y-4xy^2+xy^2
合并同类项
答
3xy-0.5x^2y+6xy^2+0.5x^2y-4xy^2+xy^2
=3xy+(-0.5x^2y+0.5x^2y)+(6xy^2-4xy^2+xy^2)
=3xy+0+3xy^2
=3xy+3xy^2