1) (b-2)/(b-3)( b+b/(2-b) )(b-2)/(b-3)( b+b/(2-b) ) = (b-2)/(b-3)*(b+1) = b+1
2) (4x/(2-x)-x):(x+2)/(x-2)(4x/(2-x)-x):(x+2)/(x-2) = (4x/(2-x) - x)*(x-2)/(x+2) = ((4x - x(2-x))(x-2))/(x+2) = (4x - x^2 + x^2 - 2x)/(x+2) = (2x)/(x+2) = 2
1) (b-2)/(b-3)( b+b/(2-b) )
(b-2)/(b-3)( b+b/(2-b) ) = (b-2)/(b-3)*(b+1) = b+1
2) (4x/(2-x)-x):(x+2)/(x-2)
(4x/(2-x)-x):(x+2)/(x-2) = (4x/(2-x) - x)*(x-2)/(x+2) = ((4x - x(2-x))(x-2))/(x+2) = (4x - x^2 + x^2 - 2x)/(x+2) = (2x)/(x+2) = 2