Lim x=3 4x^2 - 11x -3/ 3x^2 - 8x -3 10 баллов!!
4x^2-11-3 = (x-3)(4x+1) D=121+4*3*4=169 x12=(11+-13)/8=3 -1/4 ----------------------------- 3x^2-8x-3=(x-3)(3x+1) D=64+4*3*3=100 x12=(8+-10)/6=3 -1/3