$\frac{4x^3-x^2+5x-10}{x+1}$
$\sqrt{\frac{1}{4a}}$
$\frac{cot\left(x\right)+tan\left(x\right)}{sec\left(x\right)+cot\left(x\right)csc\left(x\right)}$
$x\left(2+11x\right)$
$37-x<35$
$-x^2+18x+9$
$21\frac{1}{4}x^2-2$
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