Answer:
1. x²+14x+45 = 0
2. x²+9x+18 = 0
3. x²+12x-45 = 0
4. x²+14/5x+9/5 = 0
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Answer:
1. x²+14x+45 = 0
2. x²+9x+18 = 0
3. x²+12x-45 = 0
4. x²+14/5x+9/5 = 0