Вправи 1001 - 1100 » 1092 (б)

б) y = (〖2x〗^2- 9x-5)/(5-x); 2x2 – 9x – 5 = 2(x + 1/2)(x – 5) = –(2x + 1)(5 – x); y = (〖2x〗^2-9x-5)/(5-x) = (-(2x+1)(5-x))/(5-x) = –2x – 1; y = –2x – 1; x ≠ 5.