3x² + 4x + 5 = 0 → x² + 4/3x +5/3 =0 → (x + ⅔)² + 5/3 - 4/9 = 0 → (x + ⅔)² + 11/9 = 0
Answer:
1. ≈ 12.85
2. 15
3. -38
4. 41 miles
5. 88
Step-by-step explanation: