$8^{427}\:x\:8^{-442}\:x\:2^{-3}\:x\:2^{63}\:$

$y=t^4-\frac{4}{3}t^3-12t^2$

$\frac{dy}{dx}=\frac{\cos^2\left(y\right)}{\sin^2\left(x\right)}$

$\lim_{x\to\infty}\left(\frac{x^2}{e^xlnx}\right)$

$-\:2\:-\:4\:+\:8\:+\:4\:-\:6\:+\:7\:-\:2$

$x^2\cdot\sqrt[7]{x^3}$

$-2-3sinx=1-6sinx$