$\frac{y}{4}+182<179$
$\left(m+24\right)\left(m-21\right)$
$36-56-92+45$
$\frac{d^2}{dx^2}\left(e^{-x}\cos\left(y\right)-e^{-y}\cos\left(x\right)\right)$
$48a^2-\:8a$
$x^2-20x+25$
$\sin a=\frac{8}{11}$
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