$14\:.\:0,2$

$\frac{dy}{dx}-7y=7$

$-8\cdot2+1$

$\frac{2x^2+4x+6}{\left(2x+3\right)\left(2x+2\right)}=\frac{17}{35}$

$-\:\:a\:+\:3a\:-\:\left[a\:+\:4a\:+\:a\:-\:\left(a\:-\:2a\:+\:3a\right)\:-\:4a\right]\:+\:a\:-\:2a$

$\frac{x^5-x^4+x^2-2}{-1}$

$\int\ln^2\beta d\beta$