$$\left(3x^4-2x^3+3\right)\left(x+2\right)$$

$$3-4y+-7y+8.4$$

$$\int_0^{\infty}\left(-3\ln\left(x\right)^2\right)dx$$

$$\lim_{x\to0}\left(\frac{-1\:+\:\sqrt{1\:-\:4tx}}{4t^2}\right)$$

$$-613-421-700$$

$$3\sin^2-2=\cos^2$$