$y=\frac{4}{\sqrt[5]{x^6}}$

$\left(\frac{1}{4}y^2+\frac{3}{2}y\right)^3$

$\left(x-12\right)-15\left(2x-1\right)<15$

$9x^5-21x^4+10x^3+6x^2-3x-1$

$100x^8-\frac{1}{9y^2}$

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

$5x^3-4x^2y$