✔ 最佳答案
This form of a maths equation is called factored form. In order to simplify it properly, you must put it in a expanded form. To do this, you have to multiply the 6 by the numbers inside the bracket, individually. So, if it is 6(2m-3) you must multiply 6 & 2m and 6 & -3. You would then get 12m and -18. your answer is therefore12m-18.
參考: Myself. We are currently doing expanded and factorised forms in mathematics at school.