Need help please with this question.

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

Which of the binomials below is a factor of this trinominal? x^2-13+30

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply