$\left(-5+3\right)-\left\{1-\left[7-\left(8+12-4\right)-7\right]-35+\left(4-18-15\right)\right\}$

$\int_{-2}^1\left(\frac{x}{sqrt\left(6x^2+1\right)}\right)dx$

$\int\left(\frac{5\left(lnx\right)^4}{3x}\right)dx$

$\int\frac{16x^3+64x}{4x+1}dx$

$\int\left(4\right)\left(e^{4x-7}\right)dx$

$2v-2\le3v$

$\int in\sqrt{x^2-1}dx$