$4x^2+10x+4\ge10$
$-1x^2-4x$
$\int cos^3\left(\frac{x}{7}\right)dx$
$2ydx+2xdy=0$
$\lim_{x\to\infty}\left(\frac{6x^2}{e^{5x}}\right)$
$\int\frac{z+2}{z+1}dz$
$2-3x+7x-x+2x^2+7-5$
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