$\left(p\frac{3}{2}-\sqrt{q}\right)\left(p\frac{3}{2}+\sqrt{q}\right)$

$-7\cdot7\cdot7\cdot7\cdot7\cdot7$

$\frac { 4 } { \frac { 1 } { 3 } }$

$-3a^2b^3+12a^2b^3$

$\left(\frac{8}{9}x-\frac{5}{7}y\right)^2$

$\frac{dy}{dx}=\frac{x\left(y^{2}+1\right)}{\left(x^{2}-1\right)y}$

$\int4x\sec\left(x\right)^2dx$