Due in 5 hours, 12 minutes. Due Wed 10/13/2021 11:59 pm Score on last attempt: 10 out of 1 Score in gradebook: _10 out of 1 Reattempt last question below, or select another question Suppose f(x) = 5x2 + 9x - 12. Write an expression in terms of x and h that represents the average rate of change of f over any interval of length h. [That is, over any interval (x, x + h).] Simplify your answer as much as possible. h(10x+5h-9) Preview Box 1: Enter your answer as an expression. Example: 3x 2+1, x/5, (a+b)/c Be sure your variables match those in the