$$\frac{dy}{dx}-y=\frac{1}{2}\cdot\left(a\cdot e^{-x+c}-1\right)$$

$$7,96\:\cdot6,8$$

$$3\left(7\right)\cdot4\left(11\right)$$

$$\left(4m+9\right)^3$$

$$-3x\:+\:5\:<\:-5x\:+\:2$$

$$\int\frac{x^2+2x+2}{x^4+x^3}dx$$

$$\frac{6}{1-x^3}$$