$$y^2\sqrt{y}$$

$$23^2+43-1^3$$

$$-4cos\left(x\right)-12=2\cos\left(x\right)-6$$

$$5t^2+3t^2+3t^2-4t^2-7t^2$$

$$0.803+0.1403+0.35$$

$$\left(x\:-\:4\right)\:\left(x^3\:-\:5\:x^2\:-\:12\:x\:-\:1\right)\:$$

$$4\:\left(x\:+\:5\right)\:\le\:x\:+\:8$$