$32.20+42.30$
$f^4-3f^2-4$
$\frac{dy}{dx}=8sen4x$
$\frac{d}{dx}-4y^2-9=0$
$16x^{12}+24x^6+1$
$\lim_{x\to-\infty}\left(ln\left(-x\right)^2+4x\right)$
$-10\le-1-w$
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