請分解 96 -6k^2x^2
回答 (2)
2007-06-05 7:43 pm
✔ 最佳答案
96-6k^2x^26(16-k^2x^2)
6(4-kx)(4+kx)
2007-06-06 12:23 am
96-6k^2x^2
=6(16-k^2x^2) 抽6出嚟
=6(4+kx)(4-kx) (a^2-b^2)=(a+b)(a-b) 我哋設a係4,b係kx,
i.e.16-k^2x^2=4^2-k^2x^2=(4+kx)(4-kx)
=6(16-k^2x^2) 抽6出嚟
=6(4+kx)(4-kx) (a^2-b^2)=(a+b)(a-b) 我哋設a係4,b係kx,
i.e.16-k^2x^2=4^2-k^2x^2=(4+kx)(4-kx)
參考: me
收錄日期: 2021-04-28 23:54:14
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