$4x-8=7x+16$
$\int_{\pi}^{\infty}\left(\frac{\sin\left(x\right)}{x^2}\right)dx$
$4x^{2}+72xy+54y^{2}$
$100a+200b-300c+400z$
$\left(4ab^2+xy^3\right)^2$
$\lim_{x\to1}\left(\frac{3x+\sin\left(x\right)}{x}\right)$
$\frac{x^2x^4x^{-2}}{x^{-2}}$
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