$$\cos\left(x\right)+\left(1+\sqrt{2}\right)\cdot\sin\left(x\right)-1=0$$

$$\frac{x^3+x^2}{x^2-4}$$

$$y^2-7y-30$$

$$\left(63\right)-\left(-72\right)$$

$$\int xye^{\frac{x}{3}}dx$$

$$\int0.5x\:dx$$