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√( 12 + √12 + √12 + ... =?

3
4
6
Greater than 6

Correct Answer: 4

Explanation:

Let given expression = x
Then, √12 + x = x
⇒ 12 + x = x²
⇒ x² - x - 12 = 0
⇒ (x - 4) (x + 3) = 0
So, x = 4 (neglecting x = -3)

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