$\left(6x-2y\right).\left(6x+2y\right)$

$\frac{dy}{dx}\left(x^{8x}\right)$

$\frac{1^7-b^7}{1+b}$

$\left(1-cos^2\left(x\right)\right)sec\left(x\right)tan\left(x\right)$

$15=a\left(8\right)^b$

$\tan\left(x\right)=\sqrt{sec^2x-1}$

$\left(3x^3\:+\:5x^2-\:x\right):\left(x\:+\:2\right)\:$