$\left(-33\right)-\left(-22\right)$
$x^2+5x-9=0$
$225-10w+55z$
$\frac{2x^4-x^3-3x^2+7x+12}{x^2-3}$
$\left(x^2+6x-16\right)^2$
$\int\frac{sen\left(t\right)}{cos\left(t\right)}dt$
$0=3x^2-12x-15$
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