化简:[-b+根号(b²-4ac)]/2a+[-b-根号(b²-4ac)]/2a (b²≥4ac)

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化简:[-b+根号(b²-4ac)]/2a+[-b-根号(b²-4ac)]/2a(b²≥4ac)化简:[-b+根号(b²-4ac)]/2a+[-b-根号(b&#

化简:[-b+根号(b²-4ac)]/2a+[-b-根号(b²-4ac)]/2a (b²≥4ac)
化简:[-b+根号(b²-4ac)]/2a+[-b-根号(b²-4ac)]/2a (b²≥4ac)

化简:[-b+根号(b²-4ac)]/2a+[-b-根号(b²-4ac)]/2a (b²≥4ac)
[-b+根号(b²-4ac)]/2a+[-b-根号(b²-4ac)]/2a
=[-b+√(b²-4ac)-b-√(b²-4ac)]/2a
=-2b/2a
=-b/a

=-2b/2a=-b/a

-b/a