分解因式（5m²+3n²）²-（3m²+5n²)²

来源：学生作业学帮网编辑：学帮网时间：2024/07/07 18:58:00

=(5m^2+3n^2+3m^2+5n^2)(5m^2+3n^2-3m^2-5n^2)
=(8m^2+8n^2)(2m^2-2n^2)
=16(m^2+n^2)(m+n)(m-n)