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

$\frac{2}{3}-0.5^2+2\cdot\left(-2\right)$

$\left(-1+\sqrt[3]{2x+5}\right)\left(-1-\sqrt[3]{2x+5}\right)$

$\frac{\left(x^3+2x^2-7x+4\right)}{2x^2}$

$\int\left(\cos x-\sec x\right)^2dx$

$x^4-5x^3+8x^2-4x$

$\left(-5x+3\left(\frac{x}{6}-\frac{1}{3}\right)\right)\left(x-\left(2x-1\right)\right)+4x-3x^2$