作业帮4m²n²-(m²+n²)² 因式分解Thank you very much!
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/29 10:16:34
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4m²n²-(m²+n²)² 因式分解Thank you very much!
4m²n²-(m²+n²)² 因式分解
Thank you very much!
4m²n²-(m²+n²)² 因式分解Thank you very much!
4m²n²-(m²+n²)²
=4m²n²-（m^4+2m²n²+n^4)
=4m²n²-m^4-2m^2n^2-n^4
=-m^4+2m^2n^2-n^4
=-(m^4-2m^2n^2+n^4)
=-(m^2-n^2)^2
^2就代表平方,以此类推^4就代表4次方