Question

两道数学填空题1)m(am+bm^2-cm^3)=.2)3x^5-x*x^4+x*x^2*x^2=.

Answer 1

1)m(am+bm^2-cm^3)

=m^2(a+bm-cm^2)

2)3x^5-x*x^4+x*x^2*x^2

=3x^5-x^5+x^5

=3x^5