$\int t^2\ln^2\left(t\right)dt$
$2\cos^2\left(x\right)-5=-9\cos^2\left(x\right)$
$\lim_{x\to0}\left(\frac{\sqrt{2\left(x+h\right)\:+1\:}-\sqrt{2x+1}}{x}\right)$
$\frac{x+1}{\frac{1}{x}+1}$
$x-3y+7=0$
$-4\left(x-7\right)$
$\left(1+3t\right)^3$
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