Answer:

Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. You have the following perfect square trinomial given in the problem:

2. To fill the missing term, you must divide the coefficient -16 by 2 and then you must square it, as following:

9514 1404 393
Answer:
-4u^2/y+(5/2)y^3u^2
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
(a^b)/(a^c) = a^(b-c)
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The reason is the gotter of the right angle is 12