$4\left(5n+2\right)+10-7n$
$\frac{\left(x^2-4\right)}{6\left(x^2-4\right)-\sqrt{x^2-4}}$
$\int\frac{\left(30x-10\right)^2}{3x-5}dx$
$5x+2>3x-1$
$-\int\frac{x}{\sqrt{1-x^2}}dx$
$2d^2-4d+6$
$a^3+a^3+a^3+a^3$
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