9. FS+ Mathematics M2 Chapter 4 Solving Quadratic Polynomial Equations – Pelangi Teacher Resources

1

Solve ¹/₆₄x² = 81.

- x = 0 or x = -72
- x = -8 or x = 72
- x = 72 or x = -72
- x = ⁹/₈ or x = –⁹/₈