$y=\log\left(x^2\right)$

$7a^2=-65a-18$

$\frac{d}{dx}\left(6\cos\left(x\right)\sin\left(y\right)=3\right)$

$\int_0^3ln\left(x-5\right)dx$

$\frac{8x^3-6x^2-27x+4}{4x-9}$

$-2536\cdot8746$

$\frac{\sin\left(m-n\right)}{\cos\left(m\right)\cos\left(n\right)}=\tan\left(m\right)-\tan\left(n\right)$