Question

The solution of (2x – 1)2 = 9 is equal to

Answer 1

Step-by-step explanation:

9. 2x – 1 = ± 3 ⇒ 2x – 1 = 3 or 2x – 1 = 3. 2x – 1 = 3. 2x = 4 ⇒ x = 4 2 = 2. 2x – 1 = – 3 ⇒ 2x = – 3 + 1.