mı = 9 ; my = -3 simplification Therefore, 9 and -3 are the roots of the equation (m – 3)2 – 36 = 0. Test Yourself. Solve the following equation by extracting the roots 1. x² = 25 2. x2-7 = 0 3. x2 – 0.81 = 0 4. (x + 5)2 - 16 = 0 5. 3(x – 7)2 – 27 = 0 7​