Fei Yen's dog eats 8 ounces of dog food each day.Fei Yen's bought a 28 pound bag of dog food.How many 8 ounce servings are in a
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PART A. Notice that we have 
as a common factor in all the terms, so lets factor that out:
Now we need can factor
:
We can conclude that the complete factorization of is .
PART 2. Here we just have a quadratic expression of the form
. To factor it, we are going to find <span>two numbers that will multiply to be equal the </span>c<span>, and will also add up to equal </span><span>b. Those numbers are 2 and 2:
</span>
Since both factors are equal, we can factor the expression even more:
We can conclude that the complete factorization of
is 
.
PART C. Here we have a difference of squares. Notice that 4, can be written as
, so we can rewrite our expression:
Now we can factor our difference of squares like follows:
We can conclude that the complete factorization of
is 
Now we need can factor
We can conclude that the complete factorization of
PART 2. Here we just have a quadratic expression of the form
</span>
Since both factors are equal, we can factor the expression even more:
We can conclude that the complete factorization of
PART C. Here we have a difference of squares. Notice that 4, can be written as
Now we can factor our difference of squares like follows:
We can conclude that the complete factorization of