Answer:
Since f(x) is a first order equation, it has only one zero
f(x) = -20*x +23*x -6
This means that
f(x) = (-20 + 23)*x -6
f(x) = (3)*x -6
If we mame the previous equation equal to zero ----->
(3)*x -6 = 0
x = 2
which means, the factorization is equal to
(x-2) = 0
f(x) = 3*(x-2)
