$\lim_{g\to0}\left(\frac{\left(x-g\right)^n-x^n}{g}\right)$

$tan\left(x\right)=0,955$

$\int\frac{x^6}{\left(x^7+4\right)^7}dx$

$12z^3m^5-44z^8m^3$

$\left(\frac{1}{\sqrt{k+1}}\right)\left(t-3\right)^k$

$25y^2-16$

$4 x ^ { 2 } - 8 x ^ { 2 } - 6 x ^ { 2 } + 2 x ^ { 2 } - 6 x + 10$