$x^2+9x+20=0$
$\pi\left(x^2+1\right)^2$
$\int\frac{x^2-x+14}{\left(x-4\right)^3\left(x-2\right)}dx$
$\int3\sec\left(x+1\right)\tan\left(x+1\right)dx$
$10x+5\le10+2x$
$\int x^2\left(\frac{x^3}{21}+7\right)^6dx$
$3y-y+8y$
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