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

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

$\tan\left(x\right)\cdot\cot\left(x\right)+\sin^2\left(x\right)$

$\left(12x^3-2x^2+3x+28\right)\left(3x+4\right)$

$3\left(-2j\right)$

$xy\frac{dy}{dx}=1+y,\:y\left(1\right)=3$

$\frac{5x+2}{x}+\frac{2x}{x+6}$