Question

Me ajudem por favoooor √40 + 2√10

Answer 1

√40 + 2√10

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Fatorar 

40 | 2
20 | 2
10 | 2
  5 | 5
  1 | == 2³ . 5

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√40 + 2√10
√2³.5 + 2√10
2√2.5 + 2√10
2√10 + 2√10
=> 4√10