$\left(8x-3\right)\left(8x+3\right)$

$\int\frac{z}{2x^2+8}dz$

$\left(\frac{6k}{j-2}\right)^3$

$\frac{\cos\left(x\right)\left(\csc\left(x\right)-1\right)}{\sin\left(x\right).\cos\left(x\right)}$

$3x^2+2^y^2$

$5\log\left(y\right)-\log\left(x+1\right)+\log\left(1\right)$

$2\tan^2x+2\tan x-\sec^2x=2$