$\frac{4}{x-4}=\frac{3x}{x+3}$
$4x^2+44x+121$
$3yg^3+9y^2g+18g^4y$
$2+\left(-3\right)\cdot34-\left(-5\right)$
$216\left(\frac{1}{6}\right)^{19}$
$\left(2x\right)^3\left(1\right)^2$
$\frac{d}{dx}\left(\sqrt{100-x}\right)$
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