$x^4+3x^3-30x^2-6x+56$
$\left(x+y\right)^2-6a\left(x+y\right)+9a^2$
$\int t^3e^{4t}dt$
$14+1+2-6+9+5+3$
$\csc2\left(x\right)=\frac{\csc\left(x\right)}{2\cos\left(x\right)}$
$4\cdot6+3$
$\frac{1}{x^{\frac{1}{2}}}$
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