$3\left(x+2\right)=3+2\left(x-1\right)$
$20y^4-15y^2$
$10^{4}\times4^{5}$
$\arccos\left(cos\frac{\pi}{9}\right)$
$\left(6x^2-w^2x\right)\left(6x^2+w^2x\right)$
$\frac{dy}{dx}=\frac{y}{x}+3xe^x$
$\left(x+2y\right)\left(x+2y\right)\left(x+2y\right)$
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