SOLUTION: 4 square root -20

SOLUTION: 4 square root -20

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Question 245984: 4 square root -20
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
4 square root -20
Since we have a minus under the square root we are dealing with an imaginary number.
Lets factor -20
(-1)*5*4
so that can be turned into i2sqrt(5)
so now we have 4*i*2sqrt(5)
i8sqrt(5)

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