$x^2+4x-6=0$
$0796\cdot94$
$\sqrt{320}$
$\left(2x+3y+1\right)dx=\left(3x-2y-5\right)dy$
$\sqrt{16v^6}w^9$
$cos^2\left(x\right)-sen^2\left(x\right)=cos^2\left(x\right)$
$64y^2+172y+100$
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