Activity 1. Solve the following quadratic equation by completing the square.
1. x² + 6x + 8 = 0
2. x² - 2x = 1
3. 2x² + x = 10
4. -X² + 5x + 6 = 0
5. 3x² + 2x - 12 = -7x
1. x² + 6x + 8 = 0
2. x² - 2x = 1
3. 2x² + x = 10
4. -X² + 5x + 6 = 0
5. 3x² + 2x - 12 = -7x
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Answer:
1) 4
2) 8
3) 81
4) 49
5) 225
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