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

$y\left(x\right)=\left(4x^3+6\right)^{\sin\left(x\right)}$

$2x+y+\left(x+2y\right)\cdot\frac{dx}{dy}$

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

$4x>10$

$\left(k+6\right)\left(k-\frac{2}{3}\right)$

$\left(-5x^2-4x-6\right)^2$