$y2\:+\:7y\:+\:10$
$2^4-3^4$
$\int\left(e^x\sqrt{7-e^x}\right)dx$
$4+-10+2-4-1+8-5+2$
$x+x^3+x$
$30x+-25y-80z+-62x+-70y+35z+-8$
$x^2+9<x^2-8$
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