$\frac{y^2}{2}+c=x^2+c$
$4x^2-3x+5$
$\left(3x\cdot x\right)-\left(3x-4\right)$
$\int\frac{1}{\left(x+3\right)\left(3x+1\right)}dx$
$3n+4\le19\:\:$
$2\cdot128$
$\int5x\sqrt{2-x}dx$
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