Which of the following is the correct notation for the complex number √-64-12?

8i + 12

-12 + 8i

8i - 12

12 - 8i

8i - 12

Step-by-step explanation:

√-64 - 12

Remember that a unit complex (i) = √-1

So √-64 can be written as √64 * √-1 and it gives 8 * i = 8i

The answer for √-64 - 12 is therefore 8i - 12