$3g^2+5g-2g^2+g$
$25a^4+54a^2b^2+49b^4+16a^2b^2$
$\tanh\left(\frac{x}{2}\right)=\frac{\sinh\left(x\right)}{1+\cosh\left(x\right)}$
$216-108+18a^2-a^3$
$\frac{dy}{dx}3x^5-4x^3+1$
$\left(3z^4-6y\right)\left(4y+3z^4\right)$
$\left(10n+3m\right)\left(3m-10n\right)$
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