$-1-3x+10x-6-1$
$\left(-\frac{5}{x}\right)-3\sqrt{x}$
$\sin\left(180-a\right)$
$6x^4-30x^3+12x^2$
$9sec^2\left(9x\right)$
$9y+3-4x-2y-3x-g$
$2y\left(5y-13\right)$
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