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Factor the expression over the complex numbers.

 Jan 26, 2018
 #1
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Solve for x:

x^2 + 20 = 0

 

Subtract 20 from both sides:

x^2 = -20

 

Take the square root of both sides:

x = (2i) sqrt(5)      or       x = (-2i) sqrt(5)

 Jan 26, 2018

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