$\frac{3}{5}+\frac{3}{-4-1}$
$9 ( 5 v - 3 ) + 4 ( 2 v + 5 )$
$x^2+16x+60=0$
$\int_0^2edx$
$f\left(x\right)=\sqrt{x}x$
$x^2-12x+9$
$3a^2+18a+27$
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