$2\sin x=3\cos^2x-2$
$4m^2+4m+17$
$5-2x^2=6x$
$2x^2y+2x^22+2x^22v$
$\left(5-16\right)-\left(7-3-6\right)-\left(9-13-5\right)$
$1x^2+1x+0,25$
$\left(5x+3y\right)\cdot\left(5x-2y\right)$
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