中一數學題一條~勁急~

2007-11-07 5:56 am

30m 4次方 n2次方 x (4m3次方n5次方除 -12 mn 2次方)

回答 (5)

2007-11-07 6:33 am

✔ 最佳答案

30m^4n^2*[-(4m^3n^5/12mn^2)]
=-(120m^7n^7)//12mn^2
= -10m^6n^5

參考: My form 3 maths

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2007-11-07 6:21 am

ANS: -10 m6次方 n5次方

參考: me

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2007-11-07 6:13 am

＝–m(3＋3)次方n5次方
＝–m6次方n5次方

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2007-11-07 6:04 am

30m^4n^2x(4m^3n^5/-12mn^2)
=30m^4n^2x(-m^2n^3/3)
=-10m^6n^5
p.s.當指數除指數
ex. m^3/m^2=m---係-
而指數x指數係+

參考: myself

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2007-11-07 6:02 am

中一數學題一條 the answer is 453

參考: me

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