$\left(-\frac{3\left(xy\right)^4}{-9\left(x^5y^{-2}\right)}\right)\left(\frac{3xy^{-1}}{y^{12}}\right)^{-1}$

$\frac{1024\:\left(a\right)^6-726\left(b\right)^6}{4\left(a\right)+6\left(b\right)}$

$\left(25xy\right)^{-\frac{1}{2}}$

$0.022+0.933$

$\frac{d}{dx}3x^3+4x^2-2x$

$6x+3y=36$

$\left(\sqrt{3}x+9\right)^2$