Answer:
-28(2z - 1)
Step-by-step explanation:
Looking at the coefficients -56 and 28 in -56z + 28, we see that -28 is common to both and can be factored out:
-56z + 28 = -28(2z - 1).
Now here you can use the polynomial remainder theorem directly. According to Paula's work, the remainder upon dividing by is 7, which the theorem asserts is the value of .
80
2 11/12 or 35/12