GRE
$$(x+1)^{2}$$
12
$$x^{3}$$+$$\frac{1}{x^{3}}$$
x+$$\frac{1}{x}$$
The average (arithmetic mean) of the $$7$$ integers in list M
$$x$$
$$\frac{1}{x}$$+$$\frac{1}{y}$$
$$x+y$$
ab
b-a
6s
5t
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