Odpowiedź:
(2x - 6)²(x² - 5)= 0
2x - 6= 0 ∨ x² - 5 = 0
2x = 6 ∨ (x - √5)(x + √5) = 0
x = 6/2 ∨ x = √5 ∨ x = - √5
x = 3 ∨ x = √5 ∨ x = - √5
2(x - 5)² = 2x² + 2x - 3
2(x² - 10x +25) = 2x² + 2x - 3
2x² - 20x + 50 = 2x² + 2x - 3
2x² - 2x² - 20x - 2x = - 3 - 50
- 22x = -53
22x= 53
x = 53/22 = 2 9/22
