$5^{2x}+4=5^{x+1}$
$\left(\frac{-2y^3}{x}\right)^5$
$-3+9-12-9-12-19$
$8n-9+5-9n-9$
$sec\left(2\theta\right)=\frac{sec^2\left(\theta\right)}{1-tan^2\left(\theta\right)}$
$\int\frac{x^4+x-1}{x^2+1}dx$
$\int\frac{x^2}{1-2x^2}dx$
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