- 相关推荐
GRE考试数学考点讲解
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.
【GRE考试数学考点讲解】相关文章:
自学考试写作考点分析讲解06-25
新gre考试与旧gre考试的区别06-10
出国考试:GRE考试数学备考策略分享06-06
成考专升本教育理论考点讲解06-24
gre是什么考试05-18
GRE考试备考攻略05-11
GRE考试难句解读06-21
GRE考试六不要06-22
GRE考试50道数学易错难题总结05-25