Grams
At least that is what we use in Mexico and in most Latin-American countries
Answer:
The two factors will be
Step-by-step explanation:
We have given the equation 
We know the algebraic equation 
As
can be written as
, as square of 3 is 9 and square of
is 
So 
So the two factors will be 
Step-by-step explanation:

For vertical asymptotes, find the values which make the function indetermine in this case x=-7,so this is the only vertical asymptote.
For horizontal asymptotes, find the limit when x tends to infinity:
=(5x/x-15/x)/(2x/x+14/x) = 5/2, this is the horizontal asymptote y=5/2
For obliques, you have to meet the degree of the numerator is exactly a greater degree than the denominator, in this case they are the same degree so no oblique asymptote.