$b^2+40b$
$\sqrt{\frac{x^3}{y^2}}$
$6x^2-54x+30=0$
$\int\log\left(9x\right)dx$
$2\sin\left(t\right)^2+4\cos\left(t\right)$
$x\left(1+xy^2\right)$
$xe7x\:$
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