如果是m³这样解:m(a-2)(m²-1)
如果是3m的话这样解:m(a-2)(3-1)
m3(a-2)+m(2-a)
=m³(a-2)-m(a-2)
=m(a-2)(m²-1)
=m(a-2)(m+1)(m-1)
原式=m3(a-2)-m(a-2)=m(a-2)(m2-1)=m(a-2)(a-1)(a+1)
a-2和2-a是相反数
原式=m3(a-2)-m(a-2)
=(m3-m)(a-2)
提m
=m(m*2-1)(a-2)
=m(m+1)(m-1)(a-2)
解:m³(a-2)+m(2-a)
=m³(a-2)-m(a-2)
=m(a-2)(m²-1)
=m(m-1)(m+1)(a-2)