tìm m để pt x bình -2mx+m-3=0 có x1,x2 thỏa mãn x1+2x2=0

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EXERCISE 3. YES _ NO QUESTIONS. 26. Do they teach English here? .................................................................................................................. 27. Will you invite her to your wedding party? .................................................................................................................. 28. Has Tom finished the work? .................................................................................................................. 29. Did the teacher give some exercises? .................................................................................................................. 30. Have they changed the window of the laboratory? .................................................................................................................. 31. Is she going to write a poem? .................................................................................................................. 32. Is she making big cakes for the party? .................................................................................................................. 33. Are the police making inquires about the thief? .................................................................................................................. 34. Must we finish the test before ten? .................................................................................................................. 35. Will buses bring the children home? .................................................................................................................. 36. Have you finished your homework? ..................................................................................................................