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-1 vote

 (√6 + 1)² = ? + 2√6

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 (√6 + 1)² = ? + 2√6

A). 5

B). 6

C). 7

D). 8


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1 answers

1 vote
Answered by on | Votes 1 |

7



? = (√6 + 1)² - 2√6
= (√6)² + 2 x √6 + 1 + 1² - 2√6
= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7

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