Evaluating Expressions
To evaluate an expression, plug in the specific values for the variables and simplify.
Example
For x=2, the expression 3x+5 evaluates to 3*2+5=11.
For x=2 and y=1, the expression xy/(x+y) evaluates to 2*1/(2+1)=2/3.
For x=2, the expression 4yx/(y+x) evaluates to 8y/(y+2).
Remember
After evaluation the expression does not contain the variable in any form.
有一部分考生認為新GRE數(shù)學(xué)具有一定的難度，這其中的原因是由于考生在復(fù)習(xí)時沒有把新GRE數(shù)學(xué)的基礎(chǔ)打牢。想要新GRE數(shù)學(xué)考好，復(fù)習(xí)的時候一定要把基本概念和重要考點都弄扎實。