SOLUTION: Solve by completeing the square, using th quadratic formula or by factoring t square - 4t + 8 = 0

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Question 347261: Solve by completeing the square, using th quadratic formula or by factoring
t square - 4t + 8 = 0
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Solve by completing the square, using th quadratic formula or by factoring
t^2 - 4t + 8 = 0
t^2 - 4t + ___ = -8
(4/2)^2 = 4 will complete the square, add to both sides
t^2 - 4t + 4 = -8 + 4
t^2 - 4t + 4 = -4
(t-2)^2 = -4
Find the square root of both sides
t - 2 = +/-sqrt%28-4%29
t - 2 = +/- 2i
two solutions
t = 2 + 2i
and
t = 2 - 2i