$\left(\frac{2^{n+3}}{\left(n-5\right)}\right)^n$
$100+50n+n^2$
$v^2-2v+2$
$144 \times 4 ^ { 4 } - 819 ^ { 4 } b ^ { 2 }$
$\frac{x^3+5x^2-22x+1}{x-3}$
$\log3x+7=2$
$\left(-124\right)+\left(32\right)+\left(-40\right)+\left(30\right)$
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