$$e^{\sin\left(6x+3y-18\right)}\cos x^2y^4$$

$$\int\frac{x^2}{3\sqrt{2+18x}}dx$$

$$x^{2-2x-24}$$

$$4\left(b-1\right)$$

$$\left(x^2-12x+11\right)\frac{dy}{dx}=y$$

$$\left(2a-5c\right)^2$$

$$3\sin^3\left(x\right)\csc\left(y\right)+\cos^2\left(x\right)+2\cos\left(-x\right)\cos\left(x\right)$$