$75\cdot1.95$
$\int\frac{x+5}{x^2+10x+26}dx$
$4a^3b^4\:x\:3a^2b^3$
$m^4+2m^2+m$
$\left(x+3\right)\left(x-5\right)+\left(x-1\right)^2$
$\frac{2x-1}{x}<2$
$2x-3\:1x+8\:2x+4\:1x-3\:5-2y$
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