$w-176\le2$
$w^2+8w+7=0$
$y^2-18y+15$
$4a^2+4a+a^2$
$\int sin\left(c\right)\cdot\cos\left(x\right)dx$
$\left(2senx\:+1\right)^2\:=0$
$2x+35>45$
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