f.2因式分解 2
回答 (2)
2006-11-20 4:03 am
✔ 最佳答案
我加上了一個括號令原式更易了解。(2m-3n)² / 4mn x 8m /(4m - 6n)
=【 (2m-3n)²/(4mn)】【 8m / [2(2m-3n)】
=【 (2m-3n)²(8m)】【 [2(2m-3n)(4mn)】
=【 8m(2m-3n)(2m-3n)】 / 【 (8m)(n)(2m-3n)】
= (2m-3n)/n
2006-11-20 4:12 am
(2m-3n)^2 / 4mn x 8m / 4m - 6n
=(2m-3n)(2m-3n)/4m(nx2)/2(2m-3n)
=[(2m-3n)(2m-3n)/(4m．2n)]．1/2(2m-3n)
=(2m-3n)/(4m．2n)．1/2
=(2m-3n)/16mn
=(2m-3n)(2m-3n)/4m(nx2)/2(2m-3n)
=[(2m-3n)(2m-3n)/(4m．2n)]．1/2(2m-3n)
=(2m-3n)/(4m．2n)．1/2
=(2m-3n)/16mn
收錄日期: 2021-04-23 18:50:01
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