pod punkt f) prosiłbym ;)

F (2x +1)(x+6) (6-x)(3-2x) ________ - _______ ( 6- x ) (x +6) (6-x) (x+6) = (2x +1)(x+6)-(6-x)(3-2x) _______________ = 36 -x^2 2x^2+12x+x+6- (18-12x-3x+2x^2) _______________ = 36 - x ^2 28x - 12 = ______ 36 -x^2