$\left(3x+2\right)+\left(4x-3b\right)$
$4x^2-m^2$
$-1-3+4+5$
$16a^2-20ab+4b^2$
$\sin\left(\frac{1}{3}x\right)=0$
$x^2+2z^2-6x-y+10=0$
$\frac{dy}{1-4y}=xdx$
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