长沙阳光房厂zmrmc:一道数学题:分解因式
来源:百度文库 编辑:查人人中国名人网 时间:2024/10/04 17:29:48
(m^2+n^2)-4m^2*n^2
帮帮忙啊谢谢咯
帮帮忙啊谢谢咯
(m^2+n^2)+2[m^2+n^2-(m^2+n^2)^2]
=3(m^2+n^2)-2(m^2+n^2)^2
=(3-2m^2-2n^2)(m^2+n^2)
(m^2+n^2)+2[m^2+n^2-(m^2+n^2)^2]
=3(m^2+n^2)-2(m^2+n^2)^2
=(3-2m^2-2n^2)(m^2+n^2)