$3ax^3-3ay^3$

$\cot\left(x\right)=\frac{1+\sin\left(2x\right)+\cos\left(2x\right)}{1+\sin\left(2x\right)-\cos\left(2x\right)}$

$\lim_{x\to-\infty}\left(\frac{2x^4-13x^3+2x^2-15}{x^2-2x+13}\right)$

$\lim_{x\to\infty}\left(1+\frac{x-1}{3x^2}\right)$

$\int\left(e^{p+4}\right)dp$

$9\left(3d\right)$

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