GRE考試數(shù)學(xué)考點(diǎn)講解

GRE考試數(shù)學(xué)考點(diǎn)講解

　　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考試數(shù)學(xué)考點(diǎn)講解】相關(guān)文章：

自學(xué)考試寫作考點(diǎn)分析講解06-25

新gre考試與舊gre考試的區(qū)別06-10

出國(guó)考試：GRE考試數(shù)學(xué)備考策略分享06-06

成考專升本教育理論考點(diǎn)講解06-24

GRE考試:好的學(xué)習(xí)方式是提高GRE的捷徑06-06

gre是什么考試05-18

GRE考試備考攻略05-11

GRE考試難句解讀06-21

GRE考試六不要06-22

GRE考試50道數(shù)學(xué)易錯(cuò)難題總結(jié)05-25