$\lim_{x\to\infty}\left(1+\frac{2}{x}\right)^{7x}$

$\int\left(2x^5e^{5x^6+4}\right)dx$

$\left(-6-8v\right)^2$

$12-\left|6-\left(15-8\right)\right|$

$\lim_{x\to\infty}\left(\frac{x^5-5x^4+2x+3}{x^4-1}\right)$

$\left(-38\right)\cdot\left(-21\right)$

$\cos\left(x\right)\left(1+tan\left(x\right)\right)^2=\sec\left(x\right)+2\sin\left(x\right)$