问题
填空题
分解因式:m-m3-mn2+2m2n=______
答案
m-m3-mn2+2m2n,
=m-m(m2-2mn+n2),
=m-m(m-n)2,
=m[1-(m-n)2],
=m(1+m-n)(1-m+n).
分解因式:m-m3-mn2+2m2n=______
m-m3-mn2+2m2n,
=m-m(m2-2mn+n2),
=m-m(m-n)2,
=m[1-(m-n)2],
=m(1+m-n)(1-m+n).