$\tancq=1.5$
$\frac{5x^2-3x-2}{x-1}$
$2\cdot\left|3\cdot\left(-9+4\left(5\cdot3-9\right)\right)-3\cdot\left(40-8\right)\right|$
$2x^2-7x-9=0$
$9\left(s+11\right)=9$
$2x+10=5x-14$
$x^7-27x^4-x^3+27$
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