GRE
m(n+p)
mn+p
$$\frac{1}{x}+\frac{2}{x}+\frac{3}{x}$$
$$x+\frac{x}{2}+\frac{x}{3}$$
The sum of the reciprocal of x and the reciprocal of y
1
(x+y)(r+t)
r+t(x+y)
The average of a, b and c
$$\frac{1}{2}$$
r
0
$$7+10^{m}$$
$$5+10^{v}$$
a$$x^{4}$$
$$(ax)^{4}$$
$$(\frac{1}{2})^{n}$$
$$(\frac{1}{3})^{n}$$
$$\sqrt[3]{250}$$
6$$\sqrt[3]{2}$$
a
c
The average of x, y and z
x
$$(a-b)^{2}$$
$$(a+b)^{2}$$
t
25000 +道题目
7本备考书籍
