$$2x-1\leq 3-x$$

$$4x^2<4x+24$$

$$\frac{x+1}{3}-\frac{2x+3}{4}$$

$$\left(-e^{x^2}x+e^{\left(x^2+y\right)}x\right)dx+\left(e^y+e^{\left(x^2+y\right)}\right)dy=0$$

$$cos\left(y\right)+\left(\left(1+e^{-x}\right)sin\left(y\right)\right)\frac{dy}{dx}=0$$

$$\frac{54x^5+81x^4-225x^3+74x^2+52x-24}{x^3-6x^2+32}$$

$$\left(x^{\frac{4}{7}}y^3\right)^7\left(x^4\right)^{\:3}$$