$\left(5n^2+2y\right)^3$

$2\left(5x^5-x^4-4x^3\right)$

$x^6+2x^3+1$

$\left(10x-7y+4z\right)-\left(-y+17x+8z\right)$

$\left(\frac{1}{4}x^2y+10\right)\left(2xy^2-xy\right)\left(8xy^2+\frac{2}{5}\right)$

$\frac{1}{\sin\left(x\right)^2}=\sec\left(x\right)^2$

$24a^{\:2}xy^{\:2}-36x^{\:2}y$