Please help:( Find the average rate of change of f(x)=x² - 4x+1 from x=3 to x=6. Simplify your answer as much as possible.

What constants do you need to add to each of the following quadratic equations to complete the square? 2x2 - 3x = 0 x2 - 8x = 0 2x2 - 11x = 18

What is the probability of rolling a single die greater than 4

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u