$( 7 u ^ { 3 } - 2 u w ^ { 5 } ) ^ { 2 }$
$\frac{x}{2}+3^2$
$\frac{-cot\left(x\right)+-tan\left(x\right)}{cot\left(x\right)}$
$\frac{\left(33\right)}{3}$
$\left(49^{x+5}\right)-2401=0$
$x^2y-xy-8\:=\:-4$
$-2n^3m^2n^6+m^4$
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