$2x\left(x+2\right)^2-8\left(x^2+x\right)=3x^3$

$\left(2x+1\right)^2-\left(y-5\right)^2$

$\sqrt[3]{\frac{\left(-2x\right)^3}{-z^6}}$

$3x+4=x-4$

$\lim_{x\to\frac{\pi}{2}}\left(\frac{e^{2x}-1}{sin\left(x\right)\cdot e^x}\right)$

$225-10w+55z$

$\frac{dy}{dt}=2\left(10-y\right)$