GRE數學考點《Distributive Law》舉例分析
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=32x+3y,
3a=3a2x+3ay,
3x=3x2x+3xy.
=2x+y=3x2x+42x+3xy+4y.
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/.
For division, the sum and difference in the denominator cannot be distributed ://2x+/y.
俗話說:工欲善其事必先利其器。有一部分考生認為新GRE數學具有一定的難度,這其中的'原因是由于考生在復習時沒有把新gre數學的基礎打牢。想要新gre數學考好,復習的時候一定要把基本概念和重要考點都弄扎實。
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