2018年GRE数学重要考点（3）

无论什么考试只有掌握了考点，才能达到事半功倍的效果，今天课窝小编就为大家分享GRE数学重要考点，希望同学们都能熟记下来，争取考试中取得高分。

Distributive Law

Like real number, when multiplying a sum or difference of terms, the distributive property of multiplication allows us to distribute the multiplying term among the terms being added or subtracted.

Example:

3*(2x+y)=3*2x+3*y,

3a*(2x+y)=3a*2x+3a*y,

3x*(2x+y)=3x*2x+3x*y.

(3x+4)*(2x+y)=(3x+4)*2x+(3x+4)*y=3x*2x+4*2x+3x*y+4*y.

Remember:

Do not forget to multiply all the terms inside the parenthesis.

For division, the sum and difference in the numerator can be distributed:(x+y)/(2x+y)=x/(2x+y)+y/(2x+y).

For division, the sum and difference in the denominator cannot be distributed :(x+y)/(2x+y)≠(x+y)/2x+(x+y)/y.

今天小编就和大家分享以上内容，希望大家能够熟练掌握，对同学们2018年GRE考试会有所帮助的，早日实现自己的留学梦!小编会继续更新GRE考试难度，GRE培训机构以及GRE写作等相关内容。