$\left(9b^3+d\right)^3$
$\sin\left(51\right)\sec\left(19\right)$
$\frac{4x-13}{x^3\left(x-5\right)}$
$4x^2+4x-27\ge0$
$3x^2-36x+324$
$\int\frac{2\sqrt{x^2-\frac{1}{4}}}{x}dx$
$3\left(4x-9\right)=x+6$
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