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OpenStudy (anonymous):
Solve x^2 + 4x + 8 = 0
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OpenStudy (anonymous):
do you know the quadratic formula ? Discriminant ?
OpenStudy (anonymous):
I got -4 plus or negative 8i but it's not in the choices so i did something wrong. If you can factor them are you supposed to?
OpenStudy (anonymous):
(x+2)^2=-4
OpenStudy (anonymous):
x=-2+-2i
OpenStudy (anonymous):
How?
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OpenStudy (anonymous):
Discriminant=b^2-4ac=16-4*8=16-32=-16 |dw:1318514084498:dw|
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