$z^2-15z+250$
$\lim_{x\to\frac{1}{2}}\left(\frac{ln\left(1-2x\right)}{\tan\pi x}\right)$
$10x-2$
$\frac{3x^4+4x^2}{x^2}$
$\sqrt[16]{3\cdot5\cdot17\cdot257+1}$
$5\int x^3dx$
$16x^2-72x+81$
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