$\int\frac{2\csc^2\left(3x\right)}{\cot\left(3x\right)}dx$
$8\left(w\:+\:z^2\right)\:-\:10w\left(w\:+\:z\right)$
$49x^2+9y^2+294x-180y-423=0$
$\left(2x^2y^0\right)\cdot2yx^2$
$-35m^2n^2-70n^3$
$4x^3y^2-3\left(-1\right)\left(2\right)^2$
$\sqrt{\frac{6x+3}{-2}}$
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