SOLUTION: whats the square root of -4

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Question 39931This question is from textbook alegbra 1
: whats the square root of -4 This question is from textbook alegbra 1

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
The square root of a negative number is imaginary...in this case
sqrt(-4) = ±2i
where i is the imaginary number equal to sqrt(-1)