$x^2-3x-12<0$
$\left(8+\frac{4}{x}\right)^{\frac{1}{3}}$
$2x\frac{dx}{dy}=5y$
$\frac{dy}{dx}=\left(y+3\right)\left(y-9\right)$
$4\sin^2x+7\sin x=2$
$f\left(x\right)=\arcsin\left(\sin\left(40\right)\right)$
$4x^2-48x+144$
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