$\frac{\left(p^{\frac{3}{2}}k^{\frac{1}{2}}\right)}{\left(3w\right)^{\frac{1}{2}}}-\frac{\left(p^{\frac{3}{2}}k^{\frac{1}{2}}\right)}{3^{\frac{3}{2}}\left(w\right)^{\frac{1}{2}}}-rk$

$\left(3y\right)\frac{dy}{dx}=w^2$

$\left(5y-7\right)\left(5y-4\right)$

$\frac{3x^2+12x+6}{x+2}$

$\:3a\:-\:2b\:-\:6b\:+\:9a$

$\left(-76\right)-\left(-15\right)+30$

$\:25x^2+200x+384$