$\left(4x^3+12\right)^2$

$5^2-1^{10}$

$\left(k-1\right)\left(k+5\right)\left(k-4\right)$

$\frac{d^{12}}{dx^{12}}\left(cos\left(3x\right)\right)$

$\frac{1}{x^4-2x^2a+a^2}$

$\lim_{x\to-1}\left(\frac{\sqrt{x+1}-1}{\ln\left(x+1\right)}\right)$

$\left(-1-\frac{1}{b^3}\right)^5$