$1-2x<3x+4$
$99+4$
$\left(4x-3y\right)\left(76x^3y^2+32x^2y^3\right)$
$cot\:\left(sec\:-\:tan\:\right)$
$5x^2-20x-40$
$29\cdot13$
$\int\left(2x+3\right)^2\:dx$
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