$-2-7\cdot7$
$-\sin^{-1}x-\frac{\sqrt{1-x^2}}{x}+c$
$\sqrt{36}+\:\sqrt{169}$
$2a^5+4a^7$
$\frac{\sqrt[3]{x-5}-\sqrt[3]{4+4x}}{x^3+27}$
$\left(\:6x^2-3xt\right)^3$
$\lim_{x\to0}\left(\frac{1}{\sin\left(x\right)}-\frac{1}{e^x}\right)$
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