Question

如果3m^4x-n^2和-4m^2-y-n^2x是同类项,这两个单项的积为?

Answer 1

如果3m^4x-n^2和-4m^2-y-n^2x是同类项,这两个单项的积为?

如果3m^4x-n^2和-4m^2-y-n^2x是同类项

则4x=2-y

2=2x

x=1

4x=4

这两项是3m^4-n^2和-4m^4-n^2

积为(3m^4-n^2)(-4m^4-n^2)=-12m^8+m^4n^2+n^4