$-7^5$

$\lim_{x\to0}\left(\frac{5x^3-6x}{7x^3+7}\right)$

$\lim_{x\to\:\infty}\sqrt[3]{x\left(x+1\right)}$

$\int4\tan^3\left(\frac{x}{5}\right)\sec^3\left(\frac{x}{5}\right)dx$

$\int\frac{2x}{x^3-x}dx$

$\int\frac{\cos\left(x\right)}{4-\sin\left(x\right)}dx$

$\tan\left(x\right)\cdot\left(\tan\left(x\right)-2\right)=6$