$\left(a^2y\right)\left(a^3y^3\right)$

$\int\frac{7x^3+49x^2+112x+82}{\left(x+3\right)\left(x+2\right)^3}dx$

$\sec\left(x\right)\cdot\left(\tan\left(x\right)+\cos\left(x\right)\right)$

$\left(x^2-3\right)\left(-3x^2+5\right)$

$6ax-2by-2bx-12a+6ay+4b$

$6\left(3r-1\right)$

$\frac{dx}{dt}+sin\left(t\right)x=0$