Maths Question

Like terms (同類項) are terms that have the same variables and powers.

同類項﹕兩個項目，如能進一步簡化，就是同類項，同類項的代數符號及其指數必須完全相同，才能進一步簡化。





Q: Which of the following are like terms of -2m/n?
-2m/n = (-2)(m/n)


A. -2/n = -2(1/n)
B. n/4m = (1/4)(n/m)
C. -2/m = -2(1/m)
D. -m/(-8n) = (1/8)(m/n)


Thus, the answer is D.

2014-12-06 17:51:12 補充：
eg. 2x²+3x²
2x² and 3x² are like terms because they have the same variables and power.
This means that we can factor out that common factor variable, resulting in (2+3)x², ie. 5x².

2014-12-10 18:41:22 補充：
好耐冇見...@_@
我今年repeat, 應該唔會再上黎.
下年再見吧~

阿月，你終於番黎啦？！？！？！

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2014-12-11 05:03:46 補充：
加油！！

有咩要幫手就出聲啦！！

好好保重！！