$\sin\left(y\right)^2$
$x<12-3x$
$9-3x^2-7x^2$
$-4x-5=-2x-1$
$50,46\:-\:83,57$
$\int\left(e^{4x}\cdot\left(2+e^{4x}\right)\right)dx$
$4a^2+28a+49$
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