SOLUTION: Will you please help me with this equation? Find the complex roots for {{{ x^2-20=0}}}

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Question 165856: Will you please help me with this equation? Find the complex roots for +x%5E2-20=0
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 - 20 = 0
:
x^2 = +20
:
x = +/-sqrt%2820%29
:
x = +/-sqrt%284%2A5%29
extract the perfect square
x = -2*sqrt%285%29
and
x = +2*sqrt%285%29