$\lim_{v\to\infty}\left(\arctan\left(2x\right)\right)$
$7-4x<3-3x$
$10y^2-7y^2-y^2+2y^2+4y^2$
$0^3-6\left(0\right)^2+11\left(0\right)-6$
$2\tan\left(x\right).\cos^2\left(x\right)+1$
$40tu^3v-15tu^3v+19t^2u^2v-20tu^3v$
$x+6\cdot x+3$
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