$3x^{-2}+3x^3$
$-\frac{3}{2}+5-\frac{1}{2}$
$1520-500$
$+\:217\:-\:198\:-\:32\:+\:56\:+\:39\:-\:48\:-\:103\:+\:29\:+\:200\:-\:38\:$
$144^2-b^2$
$\int_1^e\left(\frac{1}{x\sqrt{1+3ln^2x}}\right)dx$
$-3x^4+5x^3-4x^2+x^2-5x+6$
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