Plz make ur question a little bit more understandable, but what I understand is
u(v²) = u²
u = u/v
then if you need to simplify it then
u = 1/v
3pie+12mm is the correct answer (A)
First lets simplify the first term and yield (2a)
The second term:
1. 2a * (-1/2) = -a
2. -a + a = 0
Now we have simplified both terms to: (2a) (0)
Anything multiplied by 0 is 0, so the answer is also 0.
