$4z^2+34z+30$
$walfram$
$5-7s>3$
$-\tan\left(x\right)^2\:-\sec\left(x\right)^2$
$tan^3x\:=\:3tan^2\left(x\right)sec^2\left(x\right)$
$v-4+1-10v$
$-7s+-s^2+-7s-5s$
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