Penjelasan dengan langkah-langkah:
11. C. 2
2x² - 4x = 0
⇒ x² - 2x = 0
⇒ x² - 2x + 1 = 0 + 1
⇒ (x - 1)² = 1
⇒ x - 1 = √1 ∨ x - 1 = -√1
⇒ x - 1 = 1 ∨ x - 1 = -1
⇒ x = 2 ∨ x = 0
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Penjelasan dengan langkah-langkah:
11. C. 2
2x² - 4x = 0
⇒ x² - 2x = 0
⇒ x² - 2x + 1 = 0 + 1
⇒ (x - 1)² = 1
⇒ x - 1 = √1 ∨ x - 1 = -√1
⇒ x - 1 = 1 ∨ x - 1 = -1
⇒ x = 2 ∨ x = 0