$\log m^{2}n^{-1}-169y^{6}$

$\left(3x^4+y\right)\left(3x^4-y\right)$

$\lim_{x\to0}\left(\sqrt{x^2+x}\sqrt{x^2-x}\right)$

$\left(\frac{1}{2x}+4\right)\left(\frac{1}{2x}-8\right)$

$\int_0^1\left(\frac{1}{2x-5}\right)dx$

$\frac{90a^6b^4}{-9\:a^4b^3}\:\:$

$\log_w\left(w^3\right)$