(3mn-5m的2次方)-(3m的2次方-5mn)

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 08:47:54
(3mn-5m的2次方)-(3m的2次方-5mn)
x){87O4gk>N]0B(iTOz;2l94WMY@1K((dF&m51J@lr t ́Y6yv Or,

(3mn-5m的2次方)-(3m的2次方-5mn)
(3mn-5m的2次方)-(3m的2次方-5mn)

(3mn-5m的2次方)-(3m的2次方-5mn)
﹙3mn-25m²﹚-﹙9m²-5mn﹚=3mn-25m²-9m²+45mn=42mn-34m²=2m﹙21n-17m﹚