$32x^3-12x$

$\left[\left(p+w\right)+z\right]\left[\left(p+w\right)-z\right]$

$6\left(2^2+3^2\right)-4\:4^2$

$\left(\frac{2}{3}x+5y\right)\left(\frac{2}{3}x-5y\right)$

$x^2+2xyz-y^2x^4$

$\frac{1-e^x\cdot\cot\left(y\right)}{e^x\cdot csc\left(y\right)+2y\cdot csc\left(y\right)}$

$\left(9d^3-6\right)^2$