$x^3+x^2-34x+56$
$9\cot^2x-16=0$
$16x^2-81+x^2+5x+6$
$\frac{x^3-3x^2+4}{x+1}$
$28\left(3\right)$
$-73\geq 15+11x$
$-a^2-9a^2-10a^2$
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