$y=\frac{1}{4}\left(x+5\right)^2-1$
$\left(2-3y+5z\right)^2$
$2y'+5y=0$
$\frac{a^2}{b^2}+\frac{b^2}{a^2}$
$\int3cos\:\left(5x+1\right)dx$
$x^2-9x+27$
$1t-9+8-t$
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