SOLUTION: Does 2i times the square root of -4 equal -4? I think 2i times the square root of -4 does equal -4, because the square root of -4 equals 2i and (2i)(2i) equals 4i^2. i^2 = -1

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Does 2i times the square root of -4 equal -4? I think 2i times the square root of -4 does equal -4, because the square root of -4 equals 2i and (2i)(2i) equals 4i^2. i^2 = -1       Log On


   

Question 188636: Does 2i times the square root of -4 equal -4?

I think 2i times the square root of -4 does equal -4, because the square root of -4 equals 2i and (2i)(2i) equals 4i^2. i^2 = -1 so (-1)(4)= -4.

So I am wondering if my solution of -4 correct?
Answer by ptaylor(2198) About Me  (Show Source):
You can put this solution on YOUR website!
YOU ARE RIGHT ON!!!!
GOOD WORK---LOOKS LIKE YOU ARE ON TOP OF THE COMPLEX NUMBERS!!!
Hope this helps---ptaylor