$y^2+y=x^3+2x^2+2x$
$\lim_{x\to0}\left(\frac{e^{xt}}{x^2}-1-xt\right)$
$n^2-25$
$\left(\frac{3}{2}\:y^3\:+4\right)^2$
$\left(x-1\right)\left(x+1\right)=195$
$4n+6=62$
$\left(-1\right)^3\cdot\left(-1\right)^2$
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