$4v^2+4v+1$
$\lim_{x\to0}\left(\frac{3x^3}{e^{2x}}\right)$
$\frac{8n}{1n}$
$\left(a^{n+1}+b^{m-2}\right)\left(a^{m+1}+b^{m-2}\right)$
$7\:cos\:\left(2x\right)\:=\:4$
$\left[\left(-2\right)^2\right]^3\cdot\:\left[\left(-3\right)^4\right]^5\cdot\:\left(2^3\right)^3\cdot\:\left[\left(-2\right)^3\right]^2$
$\cos\left(2a+b\right)+\cos\left(2a-b\right)$
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