Question

Which choice is equivalent to the expression below?​

Answer 1

`\text{A. 8}i`

Explanation:

The math constant
`i` represents
`√(-1)`. Because
`√(a\cdot b)=√(a)\cdot√(b)`, we can rewrite the equation given the problem as
`√(-64)=√(64)\cdot √(-1)=\boxed{8i}`.