Rut NA = (2 gon √x-5 x VIC+3 x-9 1/76+3 b) B - √x √x-2 √x + 1 √6+2 +6 1x 0, x + 4 41-x c) C) C-2 √x + 7 4 + 2) √x+3 2 T x 7 0, x ± 4 2-√√√x √x+2 5 4 x > 0, x + 1 1-2