$x^2+13x+169$
$\int6xe^{x^2-1}dx$
$\cos\left(6\right)^2$
$\left(l^3o^4v^5-6e^3\right)\left(l^3o^4v^5+6e^3\right)$
$x^2+8x<-16$
$2x^2-x+4$
$\left(5x^2+3\right)\left(10x^2+10\right)$
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