You need to find the prime factors of each term in order to find the greatest common factor.
The answer is 3.
Answer:
2.1 mph
Step-by-step explanation:
The expansion of a perfect square is

In words, the square of a sum of two terms is the sum of the squares of the two terms (
and
), plus twice the product of the two terms (
)
So, when determining if you have a perfect square trinomial, you should have two perfect squares. Note that they don't have to be the first and third term, since you can rearrange terms as you prefer.
11:12 is the answer to your question