Part 2 - What is the equation of the line?

What is the factor form of x^2-9x+14

50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking:

Trying to figure out the standard form equation for this graph