Add polynomials: (3-4x + 8x^2) + (-6 + 2x - 5x^2)
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1. If you knew that DE = 
CB
Then you would know it is a mid-segment.
2. If you knew that CD = DA and BE = EA (point D and point E are midpoints of their respective segments)
Then you would know it is a mid-segment.
2. If you knew that CD = DA and BE = EA (point D and point E are midpoints of their respective segments)