Răspuns :
x+3 (x-4)(x+4) x(x-2) x+3 x-2 x+3-(x-2) x+3-x+2 5
------ - --------------- x ------------ =--------- - -------- =----------------=----------------=-----
x-4 x(x+4) (x-4) la 2 x-4 x-4 x-4 x-4 x-4
------ - --------------- x ------------ =--------- - -------- =----------------=----------------=-----
x-4 x(x+4) (x-4) la 2 x-4 x-4 x-4 x-4 x-4