In 2006 there were 72 million dogs in u.s homes that number declined by 2 million in 2010 what was the percent decline in the nu
2 answers:
You might be interested in
Answer:
.
Step-by-step explanation:
Fact:
.
In other words, , the difference of two squares in the form
and
, could be factorized into
.
In this question, the expression is the difference between two terms:
and
.
is the square of
. That is:
.
- On the other hand,
.
Hence:
.
Apply the fact that to factorize this expression. (In this case,
whereas
.)
.