$6x^3-5x^2-12x-4$
$81x^2+36x+3$
$27a^2-90ab+75b^2$
$\int_0^2\left(\frac{1}{\left(x^2+4\right)^2}\right)dx$
$1+cscx^2\:+\:cotx^2$
$64k^6-8n^3$
$-2^0-3^{-2}$
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