$4x^2+2x+2$
$x^2\le4$
$5a+20$
$x^2+11x-40=0$
$\frac{dy}{dz}=\frac{1}{zy+z+y+1}$
$t^5y^{\left(4\right)}-t^3y'$
$sin\left(180+x\right)$
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