2) algebraic expressions 係咪"代数式" ? (or 方程式?)( google said is " 代數表達式 ")
3) expressions where numbers and letters are connected by operation signs such as +,-,*,/,and brackets are called algebraic expressions ( must has a brackets ?)
4) what is "index notation" 's chinese ?
5) Why " 3n x 2n x 4n = 24n3
6) someone write " ,, " after the answer , what does " ,," mean ?
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Thank you very much !!! = 45 6 : However, people use ______ sometimes. ______ Both can use ?
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**************************= 45 6 : However, people use ______ sometimes. ****************************______
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* * * When will we use a bracket in 代数式 ? ( long answer ? )
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Q 6 : My new teacher use // after the final answer. However, I use two double 橫線 under the final answer. Both can use ?
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When will we use a bracket in 代数式 ? ( 答句果時 ? ) ( *, / 果時 ? )
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When will we use a bracket in 代数式 ? ( 答句果時 ? ) such as : There are ( 45a )apples. Correct ?
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Thank you very very very much ! ! ! ! ! ! ! ! ! ! !
