95/216
(3p-2)(4p-1)
7/8 x 10
9 x 7/8
(2-x)(x+1)x<0
(2+m)(5-m)
$\frac{\2x-9}{\2x-7}$ - $\frac{\2x-7}{\2x-9}$ = $\frac{\7}{\12}$
(0,2*10^3 )^2/8*10^-3
3/4 x 12
$\frac{\x+3}{\x+2}$ + $\frac{\x-3}{\x-2}$ = $\frac{\2x-3}{\x-1}$
