$$5\log x-\frac{1}{2}\log\left(x^3-1\right)+3\log\left(x-3\right)$$

$$\frac{dy}{dx}=\frac{12x^2}{y^2}$$

$$-12\cdot42$$

$$\frac{1+\tan\left(x\right)^3}{1-\tan\left(x\right)}$$

$$4^3+4^{10}$$

$$90x\:+\:60$$

$$6\ln\left(x\right)+\ln\left(729\right)=12$$