$x\frac{dy}{dx}+6xy=30x$
$\left(1+3x\right)\left(1+2x\right)^3$
$2+3-5+4-6+3-8-2+4-2$
$20+90+bc$
$\frac{1}{2}\int_{\sqrt{2}}^2\left(\csc\left(x\right)\right)dx$
$72\:x\:+28$
$\left(-\frac{2}{3}a+\frac{1}{5}b-7\right)^2-\left(-\frac{1}{6}a-\frac{2}{3}b+80\right)^2$
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