GRE
$$\sqrt[3]{270}$$ - $$\sqrt[3]{10}$$
$$\sqrt[3]{80}$$
x
y
(y-2)(y-1)
0
The product when multiplying 9 and the number of times he picks up 2 point cards
The number of times he picks up 4 point cards
$$(x+y+z)^{2}$$
1
2x
$$\frac{a}{c}$$
$$\frac{(a+k)}{(c+k)}$$
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245本备考书籍