(5m^2+3n^2)-(3m^2+5n^2)因式分解
问题描述:
(5m^2+3n^2)-(3m^2+5n^2)因式分解
..救急..谢咯!
答
(5m^2+3n^2)-(3m^2+5n^2)
=2m^2-2n^2
=2(m+n)(m-n)