Simplify x^6+10x^5+25x^4-x^2-10x-25 using synthetic division

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

What is always true when two whole numbers are subtracted?