Question: Please help me and answer these :) . What's the maximum possible number of turns for f(x) = x7 + 20x2 - 5x - 25?

Please help me and answer these :)

. What's the maximum possible number of turns for f(x) = x7 + 20x2 - 5x - 25? . List the possible number of real :31 imaginary root combinations for x5 + 20x2 = O. . Factor: 2x3 -7x2 + 8x - 28 . Solve the quadratic equation using factoring. 2x2 - x - 3 = O . Determine if (x-E) is Ct factor of 2x3 + 7x - 13. SHOW and EXPLAIN how you know

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