Predicting Solutions

Without solving these equations, predict the maximum and minimum number of solutions:

1. 3x + 54 = 8x – 6

2. 4x – 7 = 4x + 20

3. 5 + 4x = 3x² + 6x

4. 10x⁵ – 47x⁴ + 3x³ – x² + 8 = 0

5. 1 = x² + 3

Answers