Please help me answer these questions

Points: 0 o What is the remainder when f(x) = 2x26 - 7x11 + x - 5 is divided by x - 1? The remainder is. (Simplify your answer.) pave The polynomial function f has exactly one positive zero. Approximate the zero correct to two decimal places. f(x) =2x4 - 28x3 -5x2 -14x -3 The positive zero of f.is approximately (Round to two decimal places as needed.) The polynomial function f has exactly one positive zero. Approximate the zero correct to two decimal places. f ( x ) = x3 +x2 +3x -8 The positive zero of f is approximately (Round to two decimal places as needed.) Solve the equation in the real number system. 5x4 - 76x3 + 255x2 - 268x + 44 = 0 What are the real solutions of the equation? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution set is{ } (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed. Type each answer only once.) O B. The solution set is O. Find the real solutions of the following equation. 11x3 + 17x2-21x +5=0 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The solution set is { }. (Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed. Type each answer only once.) B. The solution set is O