Answer:
y=x^2-5x+4 i am not sure but a im try
We are given this

write it as the difference of cubes

use the formula for the difference of cubes

Now use the formula for the difference of squares as 

Answer:
-2v = (-2x3, -2x4) = (-6,-8)
Height and then the inches over 12.
Ex. 5'4" = 5 4/12 or 5 1/3