Maths problem: how to do, thanks?
回答 (1)
2020-09-23 11:43 am
✔ 最佳答案
因式分解?8m^5-8m^3+m^2-1 = 8m^3(m^2-1)+(m^2-1) = (8m^3+1)(m^2-1) = (2m+1)(4m^2-2m+1)(m-1)(m+1)在實數系 4m^2-2m+1 已不可化約。故8m^5-8m^3+m^2-1 = (m-1)(m+1)(2m+1)(4m^2-2m+1)
收錄日期: 2021-04-24 08:02:19
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