Write a polynomial equation for each set of roots 5 and 7

What are the coordinates of the hole in the graph of the function f(x) ? f(x)=x2−9x−3 enter your answer in the boxes.

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number