$\left(7n^3-p\right)^3$

$( - 2 x - y ) ^ { 2 }$

$\lim_{x\to0}\left(\frac{2.6x+1.3f-7}{f}\right)$

$1+\frac{\sin\left(u\right)}{\cos\left(u\right)}$

$\int_{-7}^{-\frac{77}{12}}\frac{x+2}{x\cdot\left(x+1\right)^2}dx$

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

$196n^2-144m^2$