Answer:
2i and -2i
Step-by-step explanation:
I'll change u to x to be easier to understand.
x^2 = -4
sqrt(x^2) = sqrt(-4)
sqrt(-4) = 2i, or -2i
$2,487.00
27x53= 1431
33x32= 1056
1056 + 1431= 2487
Answer: A and B.
answer 3